Merging upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 3631 insertions, 0 deletions

diff --git a/src/health/notifications/alarm-notify.sh.in b/src/health/notifications/alarm-notify.sh.in
new file mode 100755
index 000000000..9a5780de1
--- /dev/null
+++ b/src/health/notifications/alarm-notify.sh.in
@@ -0,0 +1,3631 @@
+#!/usr/bin/env bash
+#shellcheck source=/dev/null disable=SC2086,SC2154
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2023 Netdata Inc.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+# Script to send alarm notifications for netdata
+#
+# Features:
+#  - multiple notification methods
+#  - multiple roles per alarm
+#  - multiple recipients per role
+#  - severity filtering per recipient
+#
+# Supported notification methods:
+#  - emails by @ktsaou
+#  - slack.com notifications by @ktsaou
+#  - alerta.io notifications by @kattunga
+#  - discord.com notifications by @lowfive
+#  - pushover.net notifications by @ktsaou
+#  - pushbullet.com push notifications by Tiago Peralta @tperalta82 #1070
+#  - telegram.org notifications by @hashworks #1002
+#  - twilio.com notifications by Levi Blaney @shadycuz #1211
+#  - kafka notifications by @ktsaou #1342
+#  - pagerduty.com notifications by Jim Cooley @jimcooley #1373
+#  - messagebird.com notifications by @tech_no_logical #1453
+#  - hipchat notifications by @ktsaou #1561
+#  - fleep notifications by @Ferroin
+#  - prowlapp.com notifications by @Ferroin
+#  - irc notifications by @manosf
+#  - custom notifications by @ktsaou
+#  - syslog messages by @Ferroin
+#  - Microsoft Team notification by @tioumen
+#  - RocketChat notifications by @Hermsi1337 #3777
+#  - Dynatrace Event by @illumine
+#  - Opsgenie by @thiaoftsm #9858
+#  - Gotify by @coffeegrind123
+#  - ntfy.sh by @Dim-P
+
+# -----------------------------------------------------------------------------
+# testing notifications
+
+cmd_line="'${0}' $(printf "'%s' " "${@}")"
+
+if { [ "${1}" = "test" ] || [ "${2}" = "test" ]; } && [ "${#}" -le 2 ]; then
+  if [ "${2}" = "test" ]; then
+    recipient="${1}"
+  else
+    recipient="${2}"
+  fi
+
+  [ -z "${recipient}" ] && recipient="sysadmin"
+
+  id=1
+  last="CLEAR"
+  test_res=0
+  for x in "WARNING" "CRITICAL" "CLEAR"; do
+    echo >&2
+    echo >&2 "# SENDING TEST ${x} ALARM TO ROLE: ${recipient}"
+
+    "${0}" "${recipient}" "$(hostname)" 1 1 "${id}" "$(date +%s)" "test_alarm" "test.chart" "${x}" "${last}" 100 90 "${0}" 1 $((0 + id)) "units" "this is a test alarm to verify notifications work" "new value" "old value" "evaluated expression" "expression variable values" 0 0 "" "" "Test" "command to edit the alarm=0=$(hostname)" "" "" "a test alarm"
+    #shellcheck disable=SC2181
+    if [ $? -ne 0 ]; then
+      echo >&2 "# FAILED"
+      test_res=1
+    else
+      echo >&2 "# OK"
+    fi
+
+    last="${x}"
+    id=$((id + 1))
+  done
+
+  exit $test_res
+fi
+
+export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin:@sbindir_POST@"
+export LC_ALL=C
+
+# -----------------------------------------------------------------------------
+# logging
+
+PROGRAM_NAME="$(basename "${0}")"
+
+# these should be the same with syslog() priorities
+NDLP_EMERG=0   # system is unusable
+NDLP_ALERT=1   # action must be taken immediately
+NDLP_CRIT=2    # critical conditions
+NDLP_ERR=3     # error conditions
+NDLP_WARN=4    # warning conditions
+NDLP_NOTICE=5  # normal but significant condition
+NDLP_INFO=6    # informational
+NDLP_DEBUG=7   # debug-level messages
+
+# the max (numerically) log level we will log
+LOG_LEVEL=$NDLP_INFO
+
+set_log_min_priority() {
+  case "${NETDATA_LOG_LEVEL,,}" in
+    "emerg" | "emergency")
+      LOG_LEVEL=$NDLP_EMERG
+      ;;
+
+    "alert")
+      LOG_LEVEL=$NDLP_ALERT
+      ;;
+
+    "crit" | "critical")
+      LOG_LEVEL=$NDLP_CRIT
+      ;;
+
+    "err" | "error")
+      LOG_LEVEL=$NDLP_ERR
+      ;;
+
+    "warn" | "warning")
+      LOG_LEVEL=$NDLP_WARN
+      ;;
+
+    "notice")
+      LOG_LEVEL=$NDLP_NOTICE
+      ;;
+
+    "info")
+      LOG_LEVEL=$NDLP_INFO
+      ;;
+
+    "debug")
+      LOG_LEVEL=$NDLP_DEBUG
+      ;;
+  esac
+}
+
+set_log_min_priority
+
+log() {
+  local level="${1}"
+  shift 1
+
+  [[ -n "$level" && -n "$LOG_LEVEL" && "$level" -gt "$LOG_LEVEL" ]] && return
+
+  systemd-cat-native --log-as-netdata --newline="--NEWLINE--" <<EOFLOG
+INVOCATION_ID=${NETDATA_INVOCATION_ID}
+SYSLOG_IDENTIFIER=${PROGRAM_NAME}
+PRIORITY=${level}
+THREAD_TAG=alarm-notify
+ND_LOG_SOURCE=health
+ND_NIDL_NODE=${host}
+ND_NIDL_INSTANCE=${chart}
+ND_NIDL_CONTEXT=${context}
+ND_ALERT_NAME=${name}
+ND_ALERT_ID=${alarm_id}
+ND_ALERT_UNIQUE_ID=${unique_id}
+ND_ALERT_EVENT_ID=${alarm_event_id}
+ND_ALERT_TRANSITION_ID=${transition_id//-/}
+ND_ALERT_CLASS=${classification}
+ND_ALERT_COMPONENT=${component}
+ND_ALERT_TYPE=${type}
+ND_ALERT_RECIPIENT=${roles}
+ND_ALERT_VALUE=${value}
+ND_ALERT_VALUE_OLD=${old_value}
+ND_ALERT_STATUS=${status}
+ND_ALERT_STATUS_OLD=${old_status}
+ND_ALERT_UNITS=${units}
+ND_ALERT_SUMMARY=${summary}
+ND_ALERT_INFO=${info}
+ND_ALERT_DURATION=${duration}
+ND_REQUEST=${cmd_line}
+MESSAGE_ID=6db0018e83e34320ae2a659d78019fb7
+MESSAGE=[ALERT NOTIFICATION]: ${*//\\n/--NEWLINE--}
+
+EOFLOG
+  # AN EMPTY LINE IS NEEDED ABOVE
+}
+
+info() {
+  log "$NDLP_INFO" "${@}"
+}
+
+warning() {
+  log "$NDLP_WARN" "${@}"
+}
+
+error() {
+  log "$NDLP_ERR" "${@}"
+}
+
+fatal() {
+  log "$NDLP_ALERT" "${@}"
+  exit 1
+}
+
+debug() {
+  log "$NDLP_DEBUG" "${@}"
+}
+
+debug=0
+if [ "${NETDATA_ALARM_NOTIFY_DEBUG-0}" = "1" ]; then
+  debug=1
+  LOG_LEVEL=$NDLP_DEBUG
+fi
+
+# -----------------------------------------------------------------------------
+# check for BASH v4+ (required for associative arrays)
+
+if [ ${BASH_VERSINFO[0]} -lt 4 ]; then
+  echo >&2 "BASH version 4 or later is required (this is ${BASH_VERSION})."
+  exit 1
+fi
+
+
+# -----------------------------------------------------------------------------
+
+docurl() {
+  if [ -z "${curl}" ]; then
+    error "${curl} is unset."
+    return 1
+  fi
+
+  if [ "${debug}" = "1" ]; then
+    echo >&2 "--- BEGIN curl command ---"
+    printf >&2 "%q " ${curl} "${@}"
+    echo >&2
+    echo >&2 "--- END curl command ---"
+
+    local out code ret
+    out=$(mktemp /tmp/netdata-health-alarm-notify-XXXXXXXX)
+    code=$(${curl} ${curl_options} --write-out "%{http_code}" --output "${out}" --silent --show-error "${@}")
+    ret=$?
+    echo >&2 "--- BEGIN received response ---"
+    cat >&2 "${out}"
+    echo >&2
+    echo >&2 "--- END received response ---"
+    echo >&2 "RECEIVED HTTP RESPONSE CODE: ${code}"
+    rm "${out}"
+    echo "${code}"
+    return ${ret}
+  fi
+
+  ${curl} ${curl_options} --write-out "%{http_code}" --output /dev/null --silent --show-error "${@}"
+  return $?
+}
+
+# -----------------------------------------------------------------------------
+# List of all the notification mechanisms we support.
+# Used in a couple of places to write more compact code.
+
+method_names="
+alerta
+awssns
+custom
+discord
+dynatrace
+email
+fleep
+flock
+gotify
+hipchat
+irc
+kavenegar
+matrix
+messagebird
+msteams
+ntfy
+pd
+prowl
+pushbullet
+pushover
+rocketchat
+slack
+sms
+syslog
+telegram
+twilio
+"
+
+# -----------------------------------------------------------------------------
+# this is to be overwritten by the config file
+
+custom_sender() {
+  info "custom notification mechanism is not configured; not sending ${notification_description}"
+}
+
+# -----------------------------------------------------------------------------
+# defaults to allow running this script by hand
+
+[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="@configdir_POST@"
+[ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="@libconfigdir_POST@"
+[ -z "${NETDATA_CACHE_DIR}" ] && NETDATA_CACHE_DIR="@cachedir_POST@"
+[ -z "${NETDATA_REGISTRY_URL}" ] && NETDATA_REGISTRY_URL="https://registry.my-netdata.io"
+[ -z "${NETDATA_REGISTRY_CLOUD_BASE_URL}" ] && NETDATA_REGISTRY_CLOUD_BASE_URL="https://app.netdata.cloud"
+
+# -----------------------------------------------------------------------------
+# parse command line parameters
+
+if [[ ${1} = "unittest" ]]; then
+  unittest=1        # enable unit testing mode
+  roles="${2}"      # the role that should be used for unit testing
+  cfgfile="${3}"    # the location of the config file to use for unit testing
+  status="${4}"     # the current status : REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
+  old_status="${5}" # the previous status: REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
+elif [[ ${1} = "dump_methods" ]]; then
+  dump_methods=1
+  status="WARNING"
+else
+  roles="${1}"               # the roles that should be notified for this event
+  args_host="${2}"           # the host generated this event
+  unique_id="${3}"           # the unique id of this event
+  alarm_id="${4}"            # the unique id of the alarm that generated this event
+  event_id="${5}"            # the incremental id of the event, for this alarm id
+  when="${6}"                # the timestamp this event occurred
+  name="${7}"                # the name of the alarm, as given in netdata health.d entries
+  chart="${8}"               # the name of the chart (type.id)
+  status="${9}"             # the current status : REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
+  old_status="${10}"         # the previous status: REMOVED, UNINITIALIZED, UNDEFINED, CLEAR, WARNING, CRITICAL
+  value="${11}"              # the current value of the alarm
+  old_value="${12}"          # the previous value of the alarm
+  src="${13}"                # the line number and file the alarm has been configured
+  duration="${14}"           # the duration in seconds of the previous alarm state
+  non_clear_duration="${15}" # the total duration in seconds this is/was non-clear
+  units="${16}"              # the units of the value
+  info="${17}"               # a short description of the alarm
+  value_string="${18}"       # friendly value (with units)
+  # shellcheck disable=SC2034
+  # variable is unused, but https://github.com/netdata/netdata/pull/5164#discussion_r255572947
+  old_value_string="${19}"   # friendly old value (with units), previously named "old_value_string"
+  calc_expression="${20}"    # contains the expression that was evaluated to trigger the alarm
+  calc_param_values="${21}"  # the values of the parameters in the expression, at the time of the evaluation
+  total_warnings="${22}"     # Total number of alarms in WARNING state
+  total_critical="${23}"     # Total number of alarms in CRITICAL state
+  total_warn_alarms="${24}"  # List of alarms in warning state
+  total_crit_alarms="${25}"  # List of alarms in critical state
+  classification="${26}"     # The class field from .conf files
+  edit_command_line="${27}"  # The command to edit the alarm, with the line number
+  child_machine_guid="${28}" # the machine_guid of the child
+  transition_id="${29}"      # the transition_id of the alert
+  summary="${30}"            # the summary text field of the alert
+  context="${31}"            # the context of the chart
+  component="${32}"
+  type="${33}"
+fi
+
+# -----------------------------------------------------------------------------
+# find a suitable hostname to use, if netdata did not supply a hostname
+
+if [ -z "${args_host}" ]; then
+  this_host=$(hostname -s 2>/dev/null)
+  host="${this_host}"
+  args_host="${this_host}"
+else
+  host="${args_host}"
+fi
+
+notification_description="notification to '${roles}' for transition from ${old_status} to ${status}, of alert '${name}' = '${value_string}', of instance '${chart}', context '${context}' on host '${host}'"
+
+# -----------------------------------------------------------------------------
+# screen statuses we don't need to send a notification
+
+# don't do anything if this is not WARNING, CRITICAL or CLEAR
+if [ "${status}" != "WARNING" ] && [ "${status}" != "CRITICAL" ] && [ "${status}" != "CLEAR" ]; then
+  debug "not sending ${notification_description}"
+  exit 1
+fi
+
+# don't do anything if this is CLEAR, but it was not WARNING or CRITICAL
+if [ "${clear_alarm_always}" != "YES" ] && [ "${old_status}" != "WARNING" ] && [ "${old_status}" != "CRITICAL" ] && [ "${status}" = "CLEAR" ]; then
+  debug "not sending ${notification_description}"
+  exit 1
+fi
+
+# -----------------------------------------------------------------------------
+# load configuration
+
+# By default fetch images from the global public registry.
+# This is required by default, since all notification methods need to download
+# images via the Internet, and private registries might not be reachable.
+# This can be overwritten at the configuration file.
+images_base_url="https://registry.my-netdata.io"
+
+# curl options to use
+curl_options=""
+
+# hostname handling
+use_fqdn="NO"
+
+# needed commands
+# if empty they will be searched in the system path
+curl=
+sendmail=
+
+# enable / disable features
+for method_name in ${method_names^^}; do
+  declare SEND_${method_name}="YES"
+  declare DEFAULT_RECIPIENT_${method_name}
+done
+
+for method_name in ${method_names}; do
+  declare -A role_recipients_${method_name}
+done
+
+# slack configs
+SLACK_WEBHOOK_URL=
+
+# Microsoft Teams configs
+MSTEAMS_WEBHOOK_URL=
+
+# Legacy Microsoft Teams configs for backwards compatibility:
+declare -A role_recipients_msteam
+
+# rocketchat configs
+ROCKETCHAT_WEBHOOK_URL=
+
+# alerta configs
+ALERTA_WEBHOOK_URL=
+ALERTA_API_KEY=
+
+# flock configs
+FLOCK_WEBHOOK_URL=
+
+# discord configs
+DISCORD_WEBHOOK_URL=
+
+# pushover configs
+PUSHOVER_APP_TOKEN=
+
+# pushbullet configs
+PUSHBULLET_ACCESS_TOKEN=
+PUSHBULLET_SOURCE_DEVICE=
+
+# twilio configs
+TWILIO_ACCOUNT_SID=
+TWILIO_ACCOUNT_TOKEN=
+TWILIO_NUMBER=
+
+# hipchat configs
+HIPCHAT_SERVER=
+HIPCHAT_AUTH_TOKEN=
+
+# messagebird configs
+MESSAGEBIRD_ACCESS_KEY=
+MESSAGEBIRD_NUMBER=
+
+# kavenegar configs
+KAVENEGAR_API_KEY=
+KAVENEGAR_SENDER=
+
+# telegram configs
+TELEGRAM_BOT_TOKEN=
+
+# kafka configs
+SEND_KAFKA="YES"
+KAFKA_URL=
+KAFKA_SENDER_IP=
+
+# pagerduty.com configs
+PD_SERVICE_KEY=
+USE_PD_VERSION=
+
+# fleep.io configs
+FLEEP_SENDER="${host}"
+
+# Amazon SNS configs
+AWSSNS_MESSAGE_FORMAT=
+
+# Matrix configs
+MATRIX_HOMESERVER=
+MATRIX_ACCESSTOKEN=
+
+# syslog configs
+SYSLOG_FACILITY=
+
+# email configs
+EMAIL_SENDER=
+EMAIL_CHARSET=$(locale charmap 2>/dev/null)
+EMAIL_THREADING=
+EMAIL_PLAINTEXT_ONLY=
+
+# irc configs
+IRC_NICKNAME=
+IRC_REALNAME=
+IRC_NETWORK=
+IRC_PORT=6667
+
+# dynatrace configs
+DYNATRACE_SPACE=
+DYNATRACE_SERVER=
+DYNATRACE_TOKEN=
+DYNATRACE_TAG_VALUE=
+DYNATRACE_ANNOTATION_TYPE=
+DYNATRACE_EVENT=
+SEND_DYNATRACE=
+
+# gotify configs
+GOTIFY_APP_URL=
+GOTIFY_APP_TOKEN=
+
+# opsgenie configs
+OPSGENIE_API_KEY=
+
+# load the stock and user configuration files
+# these will overwrite the variables above
+
+if [ ${unittest} ]; then
+  if source "${cfgfile}"; then
+    error "Failed to load requested config file."
+    exit 1
+  fi
+else
+  for CONFIG in "${NETDATA_STOCK_CONFIG_DIR}/health_alarm_notify.conf" "${NETDATA_USER_CONFIG_DIR}/health_alarm_notify.conf"; do
+    if [ -f "${CONFIG}" ]; then
+      debug "Loading config file '${CONFIG}'..."
+      source "${CONFIG}" || error "Failed to load config file '${CONFIG}'."
+    else
+      debug "Cannot find file '${CONFIG}'."
+    fi
+  done
+fi
+
+if [[ ! $curl_options =~ .*\--connect-timeout ]]; then
+  curl_options+=" --connect-timeout 5"
+fi
+
+OPSGENIE_API_URL=${OPSGENIE_API_URL:-"https://api.opsgenie.com"}
+
+# If we didn't autodetect the character set for e-mail and it wasn't
+# set by the user, we need to set it to a reasonable default.  UTF-8
+# should be correct for almost all modern UNIX systems.
+if [ -z ${EMAIL_CHARSET} ]; then
+  EMAIL_CHARSET="UTF-8"
+fi
+
+# If we've been asked to use FQDN's for the URL's in the alarm, do so,
+# unless we're sending an alarm for a child system which we can't get the
+# FQDN of easily.
+if [ "${use_fqdn}" = "YES" ] && [ "${host}" = "$(hostname -s 2>/dev/null)" ]; then
+  host="$(hostname -f 2>/dev/null)"
+fi
+
+
+# -----------------------------------------------------------------------------
+# migrate old Microsoft Teams configuration keys after loading configuration
+
+msteams_migration() {
+    SEND_MSTEAMS=${SEND_MSTEAM:-$SEND_MSTEAMS}
+    unset -v SEND_MSTEAM
+    DEFAULT_RECIPIENT_MSTEAMS=${DEFAULT_RECIPIENT_MSTEAM:-$DEFAULT_RECIPIENT_MSTEAMS}
+    MSTEAMS_WEBHOOK_URL=${MSTEAM_WEBHOOK_URL:-$MSTEAMS_WEBHOOK_URL}
+    MSTEAMS_ICON_DEFAULT=${MSTEAM_ICON_DEFAULT:-$MSTEAMS_ICON_DEFAULT}
+    MSTEAMS_ICON_CLEAR=${MSTEAM_ICON_CLEAR:-$MSTEAMS_ICON_CLEAR}
+    MSTEAMS_ICON_WARNING=${MSTEAM_ICON_WARNING:-$MSTEAMS_ICON_WARNING}
+    MSTEAMS_ICON_CRITICAL=${MSTEAM_ICON_CRITICAL:-$MSTEAMS_ICON_CRITICAL}
+    MSTEAMS_COLOR_DEFAULT=${MSTEAM_COLOR_DEFAULT:-$MSTEAMS_COLOR_DEFAULT}
+    MSTEAMS_COLOR_CLEAR=${MSTEAM_COLOR_CLEAR:-$MSTEAMS_COLOR_CLEAR}
+    MSTEAMS_COLOR_WARNING=${MSTEAM_COLOR_WARNING:-$MSTEAMS_COLOR_WARNING}
+    MSTEAMS_COLOR_CRITICAL=${MSTEAM_COLOR_CRITICAL:-$MSTEAMS_COLOR_CRITICAL}
+
+    # migrate role specific recipients:
+    for key in "${!role_recipients_msteam[@]}"; do
+        # Disable check, if role_recipients_msteams is ever used:
+        # The role_recipients_$method are created and used programmatically
+        # by iterating over $methods. shellcheck therefore doesn't realize
+        # that role_recipients_msteams is actually used in the block
+        # "find the recipients' addresses per method".
+        # shellcheck disable=SC2034
+        role_recipients_msteams["$key"]="${role_recipients_msteam["$key"]}"
+    done
+}
+
+msteams_migration
+
+# -----------------------------------------------------------------------------
+# filter a recipient based on alarm event severity
+
+filter_recipient_by_criticality() {
+  local method="${1}" recipient_arg="${2}"
+  local tracking_dir tracking_file modifier modifiers recipient="${recipient_arg/|*/}"
+  local mod_critical=0 mod_noclear=0 mod_nowarn=0
+
+  # no severity filtering for this person
+  [ "${recipient}" = "${recipient_arg}" ] && return 0
+
+  # find out which modifiers are set
+  modifiers="${recipient_arg#*|}"
+  modifiers="${modifiers//|/ }" # replace pipes with spaces
+  modifiers="${modifiers,,}"    # lowercase
+  for modifier in ${modifiers}; do
+    case "${modifier}" in
+      critical) mod_critical=1 ;;
+      noclear) mod_noclear=1 ;;
+      nowarn) mod_nowarn=1 ;;
+
+      *)
+        error "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: invalid modifier '${modifier}'."
+        # invalid modifier, always send notification
+        return 0
+      ;;
+    esac
+  done
+
+  # set status tracking directory/file var
+  tracking_dir="${NETDATA_CACHE_DIR}/alarm-notify/${method}/${recipient}"
+  tracking_file="${tracking_dir}/${alarm_id}"
+
+  # create the status tracking directory for this user if "critical" modifier is set
+  [ "${mod_critical}" == "1" ] && [ ! -d "${tracking_dir}" ] && mkdir -p "${tracking_dir}"
+
+  case "${status}" in
+    CRITICAL)
+      # "critical" modifier set, create tracking file for future status changes
+      if [ "${mod_critical}" == "1" ]; then
+        touch "${tracking_file}"
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: ALLOW: the alarm is CRITICAL (will now receive next status change)"
+        return 0
+      fi
+
+      # always send CRITICAL notification
+      debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: ALLOW: the alarm is CRITICAL"
+      return 0
+      ;;
+
+    WARNING)
+      # "nowarn" modifier set, block notification
+      if [ "${mod_nowarn}" == "1" ]; then
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: BLOCK: recipient should not receive this notification (nowarn modifier set)"
+        return 1
+      fi
+
+      # "critical" modifier not set, send notification
+      if [ "${mod_critical}" == "0" ]; then
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: ALLOW: the alarm is WARNING"
+        return 0
+      fi
+
+      # "critical" modifier set, send notification if tracking file exists
+      if [ "${mod_critical}" == "1" ] && [ -f "${tracking_file}" ]; then
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: ALLOW: recipient has been notified for this alarm in the past (will still receive next status change)"
+        return 0
+      fi
+      ;;
+
+    CLEAR)
+      # remove tracking file
+      [ -f "${tracking_file}" ] && rm "${tracking_file}"
+
+      # "noclear" modifier set, block notification
+      if [ "${mod_noclear}" == "1" ]; then
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: BLOCK: recipient should not receive this notification (noclear modifier set)"
+        return 1
+      fi
+
+      # "critical" modifier not set, send notification
+      if [ "${mod_critical}" == "0" ]; then
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: ALLOW: the alarm is CLEAR"
+        return 0
+      fi
+
+      # "critical" modifier set, send notification if tracking file exists
+      if [ "${mod_critical}" == "1" ] && [ -f "${tracking_file}" ]; then
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: ALLOW: recipient has been notified for this alarm in the past (no status change will be sent from now)"
+        return 0
+      fi
+      ;;
+
+    *)
+      # "critical" modifier set, send notification if tracking file exists
+      if [ "${mod_critical}" == "1" ] && [ -f "${tracking_file}" ]; then
+        debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: ALLOW: recipient has been notified for this alarm in the past (will still receive next status change)"
+        return 0
+      fi
+      ;;
+  esac
+
+  debug "SEVERITY FILTERING for ${recipient_arg} VIA ${method}: BLOCK: recipient should not receive this notification"
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# check the configured targets
+
+# check email
+if [ "${SEND_EMAIL}" = "AUTO" ]; then
+  if command -v curl >/dev/null 2>&1; then
+      SEND_EMAIL="YES"
+  else
+      SEND_EMAIL="NO"
+  fi
+fi
+
+# check slack
+[ -z "${SLACK_WEBHOOK_URL}" ] && SEND_SLACK="NO"
+
+# check rocketchat
+[ -z "${ROCKETCHAT_WEBHOOK_URL}" ] && SEND_ROCKETCHAT="NO"
+
+# check alerta
+[ -z "${ALERTA_WEBHOOK_URL}" ] && SEND_ALERTA="NO"
+
+# check flock
+[ -z "${FLOCK_WEBHOOK_URL}" ] && SEND_FLOCK="NO"
+
+# check discord
+[ -z "${DISCORD_WEBHOOK_URL}" ] && SEND_DISCORD="NO"
+
+# check pushover
+[ -z "${PUSHOVER_APP_TOKEN}" ] && SEND_PUSHOVER="NO"
+
+# check pushbullet
+[ -z "${PUSHBULLET_ACCESS_TOKEN}" ] && SEND_PUSHBULLET="NO"
+
+# check twilio
+{ [ -z "${TWILIO_ACCOUNT_TOKEN}" ] || [ -z "${TWILIO_ACCOUNT_SID}" ] || [ -z "${TWILIO_NUMBER}" ]; } && SEND_TWILIO="NO"
+
+# check hipchat
+[ -z "${HIPCHAT_AUTH_TOKEN}" ] && SEND_HIPCHAT="NO"
+
+# check messagebird
+{ [ -z "${MESSAGEBIRD_ACCESS_KEY}" ] || [ -z "${MESSAGEBIRD_NUMBER}" ]; } && SEND_MESSAGEBIRD="NO"
+
+# check kavenegar
+{ [ -z "${KAVENEGAR_API_KEY}" ] || [ -z "${KAVENEGAR_SENDER}" ]; } && SEND_KAVENEGAR="NO"
+
+# check telegram
+[ -z "${TELEGRAM_BOT_TOKEN}" ] && SEND_TELEGRAM="NO"
+
+# check kafka
+{ [ -z "${KAFKA_URL}" ] || [ -z "${KAFKA_SENDER_IP}" ]; } && SEND_KAFKA="NO"
+
+# check irc
+[ -z "${IRC_NETWORK}" ] && SEND_IRC="NO"
+
+# check fleep
+#shellcheck disable=SC2153
+{ [ -z "${FLEEP_SERVER}" ] || [ -z "${FLEEP_SENDER}" ]; } && SEND_FLEEP="NO"
+
+# check dynatrace
+{ [ -z "${DYNATRACE_SPACE}" ] ||
+  [ -z "${DYNATRACE_SERVER}" ] ||
+  [ -z "${DYNATRACE_TOKEN}" ] ||
+  [ -z "${DYNATRACE_TAG_VALUE}" ] ||
+  [ -z "${DYNATRACE_EVENT}" ]; } && SEND_DYNATRACE="NO"
+
+# check opsgenie
+[ -z "${OPSGENIE_API_KEY}" ] && SEND_OPSGENIE="NO"
+
+# check matrix
+{ [ -z "${MATRIX_HOMESERVER}" ] || [ -z "${MATRIX_ACCESSTOKEN}" ]; } && SEND_MATRIX="NO"
+
+# check gotify
+{ [ -z "${GOTIFY_APP_TOKEN}" ] || [ -z "${GOTIFY_APP_URL}" ]; } && SEND_GOTIFY="NO"
+
+# check ntfy
+[ -z "${DEFAULT_RECIPIENT_NTFY}" ] && SEND_NTFY="NO"
+
+# check msteams
+[ -z "${MSTEAMS_WEBHOOK_URL}" ] && SEND_MSTEAMS="NO"
+
+# check pd
+[ -z "${DEFAULT_RECIPIENT_PD}" ] && SEND_PD="NO"
+
+# check prowl
+[ -z "${DEFAULT_RECIPIENT_PROWL}" ] && SEND_PROWL="NO"
+
+# check custom
+[ -z "${DEFAULT_RECIPIENT_CUSTOM}" ] && SEND_CUSTOM="NO"
+
+# -----------------------------------------------------------------------------
+# check the availability of targets
+
+check_supported_targets() {
+  local log=${1}
+  shift
+
+  if [ "${SEND_PUSHOVER}" = "YES" ] ||
+    [ "${SEND_SLACK}" = "YES" ] ||
+    [ "${SEND_ROCKETCHAT}" = "YES" ] ||
+    [ "${SEND_ALERTA}" = "YES" ] ||
+    [ "${SEND_PD}" = "YES" ] ||
+    [ "${SEND_FLOCK}" = "YES" ] ||
+    [ "${SEND_DISCORD}" = "YES" ] ||
+    [ "${SEND_HIPCHAT}" = "YES" ] ||
+    [ "${SEND_TWILIO}" = "YES" ] ||
+    [ "${SEND_MESSAGEBIRD}" = "YES" ] ||
+    [ "${SEND_KAVENEGAR}" = "YES" ] ||
+    [ "${SEND_TELEGRAM}" = "YES" ] ||
+    [ "${SEND_PUSHBULLET}" = "YES" ] ||
+    [ "${SEND_KAFKA}" = "YES" ] ||
+    [ "${SEND_FLEEP}" = "YES" ] ||
+    [ "${SEND_PROWL}" = "YES" ] ||
+    [ "${SEND_MATRIX}" = "YES" ] ||
+    [ "${SEND_CUSTOM}" = "YES" ] ||
+    [ "${SEND_MSTEAMS}" = "YES" ] ||
+    [ "${SEND_DYNATRACE}" = "YES" ] ||
+    [ "${SEND_OPSGENIE}" = "YES" ] ||
+    [ "${SEND_GOTIFY}" = "YES" ] ||
+    [ "${SEND_NTFY}" = "YES" ]; then
+    # if we need curl, check for the curl command
+    if [ -z "${curl}" ]; then
+      curl="$(command -v curl 2>/dev/null)"
+    fi
+    if [ -z "${curl}" ]; then
+      $log "Cannot find curl command in the system path. Disabling all curl based notifications."
+      SEND_PUSHOVER="NO"
+      SEND_PUSHBULLET="NO"
+      SEND_TELEGRAM="NO"
+      SEND_SLACK="NO"
+      SEND_MSTEAMS="NO"
+      SEND_ROCKETCHAT="NO"
+      SEND_ALERTA="NO"
+      SEND_PD="NO"
+      SEND_FLOCK="NO"
+      SEND_DISCORD="NO"
+      SEND_TWILIO="NO"
+      SEND_HIPCHAT="NO"
+      SEND_MESSAGEBIRD="NO"
+      SEND_KAVENEGAR="NO"
+      SEND_KAFKA="NO"
+      SEND_FLEEP="NO"
+      SEND_PROWL="NO"
+      SEND_MATRIX="NO"
+      SEND_CUSTOM="NO"
+      SEND_DYNATRACE="NO"
+      SEND_OPSGENIE="NO"
+      SEND_GOTIFY="NO"
+      SEND_NTFY="NO"
+    fi
+  fi
+
+  if [ "${SEND_SMS}" = "YES" ]; then
+    if [ -z "${sendsms}" ]; then
+      sendsms="$(command -v sendsms 2>/dev/null)"
+    fi
+    if [ -z "${sendsms}" ]; then
+      SEND_SMS="NO"
+    fi
+  fi
+  # if we need sendmail, check for the sendmail command
+  if [ "${SEND_EMAIL}" = "YES" ] && [ -z "${sendmail}" ]; then
+    sendmail="$(command -v sendmail 2>/dev/null)"
+    if [ -z "${sendmail}" ]; then
+      $log "Cannot find sendmail command in the system path. Disabling email notifications."
+      SEND_EMAIL="NO"
+    fi
+  fi
+
+  # if we need logger, check for the logger command
+  if [ "${SEND_SYSLOG}" = "YES" ] && [ -z "${logger}" ]; then
+    logger="$(command -v logger 2>/dev/null)"
+    if [ -z "${logger}" ]; then
+      $log "Cannot find logger command in the system path. Disabling syslog notifications."
+      SEND_SYSLOG="NO"
+    fi
+  fi
+
+  # if we need aws, check for the aws command
+  if [ "${SEND_AWSSNS}" = "YES" ] && [ -z "${aws}" ]; then
+    aws="$(command -v aws 2>/dev/null)"
+    if [ -z "${aws}" ]; then
+      $log "Cannot find aws command in the system path.  Disabling Amazon SNS notifications."
+      SEND_AWSSNS="NO"
+    fi
+  fi
+
+  # if we need nc, check for the nc command
+  if [ "${SEND_IRC}" = "YES" ] && [ -z "${nc}" ]; then
+    nc="$(command -v nc 2>/dev/null)"
+    if [ -z "${nc}" ]; then
+      $log "Cannot find nc command in the system path.  Disabling IRC notifications."
+      SEND_IRC="NO"
+    fi
+  fi
+}
+
+if [ ${dump_methods} ]; then
+    check_supported_targets debug
+    for name in "${!SEND_@}"; do
+        if [ "${!name}" = "YES" ]; then
+            echo "$name"
+        fi
+    done
+    exit 0
+fi
+
+# -----------------------------------------------------------------------------
+# find the recipients' addresses per method
+
+# netdata may call us with multiple roles, and roles may have multiple but
+# overlapping recipients - so, here we find the unique recipients.
+have_to_send_something="NO"
+for method_name in ${method_names}; do
+  send_var="SEND_${method_name^^}"
+  if [ "${!send_var}" = "NO" ]; then
+    continue
+  fi
+
+  declare -A arr_var=()
+
+  for x in ${roles//,/ }; do
+    # the roles 'silent' and 'disabled' mean:
+    # don't send a notification for this role
+    if [ "${x}" = "silent" ] || [ "${x}" = "disabled" ]; then
+      continue
+    fi
+
+    role_recipients="role_recipients_${method_name}[$x]"
+    default_recipient_var="DEFAULT_RECIPIENT_${method_name^^}"
+
+    a="${!role_recipients}"
+    [ -z "${a}" ] && a="${!default_recipient_var}"
+    for r in ${a//,/ }; do
+      [ "${r}" != "disabled" ] && filter_recipient_by_criticality ${method_name} "${r}" && arr_var[${r/|*/}]="1"
+    done
+  done
+
+  # build the list of recipients
+  to_var="to_${method_name}"
+  declare to_${method_name}="${!arr_var[*]}"
+
+  if [ -z "${!to_var}" ]; then
+    declare ${send_var}="NO"
+  else
+    have_to_send_something="YES"
+  fi
+done
+
+# -----------------------------------------------------------------------------
+# handle fixup of the email recipient list.
+
+fix_to_email() {
+  to_email=
+  while [ -n "${1}" ]; do
+    [ -n "${to_email}" ] && to_email="${to_email}, "
+    to_email="${to_email}${1}"
+    shift 1
+  done
+}
+
+# ${to_email} without quotes here
+fix_to_email ${to_email}
+
+# -----------------------------------------------------------------------------
+# handle output if we're running in unit test mode
+if [ ${unittest} ]; then
+  for method_name in ${method_names}; do
+    to_var="to_${method_name}"
+    echo "results: ${method_name}: ${!to_var}"
+  done
+  exit 0
+fi
+
+# -----------------------------------------------------------------------------
+# check that we have at least a method enabled
+proceed=0
+for method in "${SEND_EMAIL}" \
+  "${SEND_PUSHOVER}" \
+  "${SEND_TELEGRAM}" \
+  "${SEND_SLACK}" \
+  "${SEND_ROCKETCHAT}" \
+  "${SEND_ALERTA}" \
+  "${SEND_FLOCK}" \
+  "${SEND_DISCORD}" \
+  "${SEND_TWILIO}" \
+  "${SEND_HIPCHAT}" \
+  "${SEND_MESSAGEBIRD}" \
+  "${SEND_KAVENEGAR}" \
+  "${SEND_PUSHBULLET}" \
+  "${SEND_KAFKA}" \
+  "${SEND_PD}" \
+  "${SEND_FLEEP}" \
+  "${SEND_PROWL}" \
+  "${SEND_MATRIX}" \
+  "${SEND_CUSTOM}" \
+  "${SEND_IRC}" \
+  "${SEND_AWSSNS}" \
+  "${SEND_SYSLOG}" \
+  "${SEND_SMS}" \
+  "${SEND_MSTEAMS}" \
+  "${SEND_DYNATRACE}" \
+  "${SEND_OPSGENIE}" \
+  "${SEND_GOTIFY}" \
+  "${SEND_NTFY}" ; do
+
+  if [ "${method}" == "YES" ]; then
+    proceed=1
+    break
+  fi
+done
+
+if [ "$proceed" -eq 0 ]; then
+  if [ "${have_to_send_something}" = "NO" ]; then
+    debug "All notification methods are disabled; not sending ${notification_description}."
+    exit 0
+  else
+    fatal "All notification methods are disabled; not sending ${notification_description}."
+  fi
+fi
+
+check_supported_targets error
+
+# -----------------------------------------------------------------------------
+# get the date the alarm happened
+
+date=$(date --date=@${when} "${date_format}" 2>/dev/null)
+[ -z "${date}" ] && date=$(date "${date_format}" 2>/dev/null)
+[ -z "${date}" ] && date=$(date --date=@${when} 2>/dev/null)
+[ -z "${date}" ] && date=$(date 2>/dev/null)
+
+# -----------------------------------------------------------------------------
+# get the date in utc the alarm happened
+
+date_utc=$(date --date=@${when} "${date_format}" -u 2>/dev/null)
+[ -z "${date_utc}" ] && date_utc=$(date -u "${date_format}" 2>/dev/null)
+[ -z "${date_utc}" ] && date_utc=$(date -u --date=@${when} 2>/dev/null)
+[ -z "${date_utc}" ] && date_utc=$(date -u 2>/dev/null)
+
+# ----------------------------------------------------------------------------
+# prepare some extra headers if we've been asked to thread e-mails
+if [ "${SEND_EMAIL}" == "YES" ] && [ "${EMAIL_THREADING}" != "NO" ]; then
+  email_thread_headers="In-Reply-To: <${chart}-${name}@${host}>\\r\\nReferences: <${chart}-${name}@${host}>"
+else
+  email_thread_headers=
+fi
+
+# -----------------------------------------------------------------------------
+# function to URL encode a string
+
+urlencode() {
+  local string="${1}" strlen encoded pos c o
+
+  strlen=${#string}
+  for ((pos = 0; pos < strlen; pos++)); do
+    c=${string:pos:1}
+    case "${c}" in
+    [-_.~a-zA-Z0-9])
+      o="${c}"
+      ;;
+
+    *)
+      printf -v o '%%%02x' "'${c}"
+      ;;
+    esac
+    encoded+="${o}"
+  done
+
+  REPLY="${encoded}"
+  echo "${REPLY}"
+}
+
+# -----------------------------------------------------------------------------
+# function to convert a duration in seconds, to a human readable duration
+# using DAYS, MINUTES, SECONDS
+
+duration4human() {
+  local s="${1}" d=0 h=0 m=0 ds="day" hs="hour" ms="minute" ss="second" ret
+  d=$((s / 86400))
+  s=$((s - (d * 86400)))
+  h=$((s / 3600))
+  s=$((s - (h * 3600)))
+  m=$((s / 60))
+  s=$((s - (m * 60)))
+
+  if [ ${d} -gt 0 ]; then
+    [ ${m} -ge 30 ] && h=$((h + 1))
+    [ ${d} -gt 1 ] && ds="days"
+    [ ${h} -gt 1 ] && hs="hours"
+    if [ ${h} -gt 0 ]; then
+      ret="${d} ${ds} and ${h} ${hs}"
+    else
+      ret="${d} ${ds}"
+    fi
+  elif [ ${h} -gt 0 ]; then
+    [ ${s} -ge 30 ] && m=$((m + 1))
+    [ ${h} -gt 1 ] && hs="hours"
+    [ ${m} -gt 1 ] && ms="minutes"
+    if [ ${m} -gt 0 ]; then
+      ret="${h} ${hs} and ${m} ${ms}"
+    else
+      ret="${h} ${hs}"
+    fi
+  elif [ ${m} -gt 0 ]; then
+    [ ${m} -gt 1 ] && ms="minutes"
+    [ ${s} -gt 1 ] && ss="seconds"
+    if [ ${s} -gt 0 ]; then
+      ret="${m} ${ms} and ${s} ${ss}"
+    else
+      ret="${m} ${ms}"
+    fi
+  else
+    [ ${s} -gt 1 ] && ss="seconds"
+    ret="${s} ${ss}"
+  fi
+
+  REPLY="${ret}"
+  echo "${REPLY}"
+}
+
+# -----------------------------------------------------------------------------
+# email sender
+
+send_email() {
+  local ret opts=() sender_email="${EMAIL_SENDER}" sender_name=
+  if [ "${SEND_EMAIL}" = "YES" ]; then
+
+    if [ -n "${EMAIL_SENDER}" ]; then
+      if [[ ${EMAIL_SENDER} =~ ^\".*\"\ \<.*\>$ ]]; then
+        # the name includes double quotes
+        sender_email="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 2 | cut -d '>' -f 1)"
+        sender_name="$(echo "${EMAIL_SENDER}" | cut -d '"' -f 2)"
+      elif [[ ${EMAIL_SENDER} =~ ^\'.*\'\ \<.*\>$ ]]; then
+        # the name includes single quotes
+        sender_email="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 2 | cut -d '>' -f 1)"
+        sender_name="$(echo "${EMAIL_SENDER}" | cut -d "'" -f 2)"
+      elif [[ ${EMAIL_SENDER} =~ ^.*\ \<.*\>$ ]]; then
+        # the name does not have any quotes
+        sender_email="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 2 | cut -d '>' -f 1)"
+        sender_name="$(echo "${EMAIL_SENDER}" | cut -d '<' -f 1)"
+      fi
+    fi
+
+    [ -n "${sender_email}" ] && opts+=(-f "${sender_email}")
+    [ -n "${sender_name}" ] && ${sendmail} -F 2>&1 | head -1 | grep -qv "sendmail: unrecognized option: F" && opts+=(-F "${sender_name}")
+
+    if [ "${debug}" = "1" ]; then
+      echo >&2 "--- BEGIN sendmail command ---"
+      printf >&2 "%q " "${sendmail}" -t "${opts[@]}"
+      echo >&2
+      echo >&2 "--- END sendmail command ---"
+    fi
+
+    local cmd_output
+    cmd_output=$("${sendmail}" -t "${opts[@]}" 2>&1)
+    ret=$?
+
+    if [ ${ret} -eq 0 ]; then
+      info "sent email to '${to_email}' for ${notification_description}"
+      return 0
+    else
+      error "failed to send email to '${to_email}' for ${notification_description}, with error code ${ret} (${cmd_output})."
+      return 1
+    fi
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# pushover sender
+
+send_pushover() {
+  local apptoken="${1}" usertokens="${2}" when="${3}" url="${4}" status="${5}" title="${6}" message="${7}" httpcode sent=0 user priority
+
+  if [ "${SEND_PUSHOVER}" = "YES" ] && [ -n "${apptoken}" ] && [ -n "${usertokens}" ] && [ -n "${title}" ] && [ -n "${message}" ]; then
+
+    # https://pushover.net/api
+    priority=-2
+    case "${status}" in
+    CLEAR) priority=-1 ;; # low priority: no sound or vibration
+    WARNING) priority=0 ;; # normal priority: respect quiet hours
+    CRITICAL) priority=1 ;; # high priority: bypass quiet hours
+    *) priority=-2 ;; # lowest priority: no notification at all
+    esac
+
+    for user in ${usertokens}; do
+      httpcode=$(docurl \
+        --form-string "token=${apptoken}" \
+        --form-string "user=${user}" \
+        --form-string "html=1" \
+        --form-string "title=${title}" \
+        --form-string "message=${message}" \
+        --form-string "timestamp=${when}" \
+        --form-string "url=${url}" \
+        --form-string "url_title=Open netdata dashboard to view the alarm" \
+        --form-string "priority=${priority}" \
+        https://api.pushover.net/1/messages.json)
+
+      if [ "${httpcode}" = "200" ]; then
+        info "sent pushover notification to '${user}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send pushover notification to '${user}' for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# pushbullet sender
+
+send_pushbullet() {
+  local userapikey="${1}" source_device="${2}" recipients="${3}" url="${4}" title="${5}" message="${6}" httpcode sent=0 userOrChannelTag
+  if [ "${SEND_PUSHBULLET}" = "YES" ] && [ -n "${userapikey}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
+
+    # https://docs.pushbullet.com/#create-push
+    # Accept specification of user(s) (PushBullet account email address) and/or channel tag(s), separated by spaces.
+    # If recipient begins with a "#" then send to channel tag, otherwise send to email recipient.
+
+    for userOrChannelTag in ${recipients}; do
+      if [ "${userOrChannelTag::1}" = "#" ]; then
+        userOrChannelTag_type="channel_tag"
+        userOrChannelTag="${userOrChannelTag:1}" # Remove hash from start of channel tag (required by pushbullet API)
+      else
+        userOrChannelTag_type="email"
+      fi
+
+      httpcode=$(docurl \
+        --header 'Access-Token: '${userapikey}'' \
+        --header 'Content-Type: application/json' \
+        --data-binary @<(
+          cat <<EOF
+                              {"title": "${title}",
+                              "type": "link",
+                              "${userOrChannelTag_type}": "${userOrChannelTag}",
+                              "body": "$(echo -n ${message})",
+                              "url": "${url}",
+                              "source_device_iden": "${source_device}"}
+EOF
+        ) "https://api.pushbullet.com/v2/pushes" -X POST)
+
+      if [ "${httpcode}" = "200" ]; then
+        info "sent pushbullet notification to '${userOrChannelTag}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send pushbullet notification to '${userOrChannelTag}' for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# kafka sender
+
+send_kafka() {
+  local httpcode sent=0
+  if [ "${SEND_KAFKA}" = "YES" ]; then
+    httpcode=$(docurl -X POST \
+      --data "{host_ip:\"${KAFKA_SENDER_IP}\",when:${when},name:\"${name}\",chart:\"${chart}\",status:\"${status}\",old_status:\"${old_status}\",value:${value},old_value:${old_value},duration:${duration},non_clear_duration:${non_clear_duration},units:\"${units}\",info:\"${info}\"}" \
+      "${KAFKA_URL}")
+
+    if [ "${httpcode}" = "204" ]; then
+      info "sent kafka data to '${KAFKA_SENDER_IP}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send kafka data to '${KAFKA_SENDER_IP}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# pagerduty.com sender
+
+send_pd() {
+  local recipients="${1}" sent=0 severity current_time payload url response_code
+  unset t
+  case ${status} in
+  CLEAR) t='resolve' ; severity='info' ;;
+  WARNING) t='trigger' ; severity='warning' ;;
+  CRITICAL) t='trigger' ; severity='critical' ;;
+  esac
+
+  if [ ${SEND_PD} = "YES" ] && [ -n "${t}" ]; then
+    if [ "$(uname)" == "Linux" ]; then
+      current_time=$(date -d @${when} +'%Y-%m-%dT%H:%M:%S.000')
+    else
+      current_time=$(date -r ${when} +'%Y-%m-%dT%H:%M:%S.000')
+    fi
+    for PD_SERVICE_KEY in ${recipients}; do
+      d="${status} ${name} = ${value_string} - ${host}"
+      if [ ${USE_PD_VERSION} = "2" ]; then
+        payload="$(
+          cat <<EOF
+              {
+                "payload" : {
+                  "summary": "${info:0:1024}",
+                  "source" : "${args_host}",
+                  "severity" : "${severity}",
+                  "timestamp" : "${current_time}",
+                  "class" : "${chart}",
+                  "custom_details": {
+                    "value_w_units": "${value_string}",
+                    "when": "${when}",
+                    "duration" : "${duration}",
+                    "roles": "${roles}",
+                    "alarm_id" : "${alarm_id}",
+                    "name" : "${name}",
+                    "chart" : "${chart}",
+                    "status" : "${status}",
+                    "old_status" : "${old_status}",
+                    "value" : "${value}",
+                    "old_value" : "${old_value}",
+                    "src" : "${src}",
+                    "non_clear_duration" : "${non_clear_duration}",
+                    "units" : "${units}",
+                    "info" : "${info}"
+                  }
+                },
+                "routing_key": "${PD_SERVICE_KEY}",
+                "event_action": "${t}",
+                "dedup_key": "${unique_id}"
+              }
+EOF
+        )"
+        url="https://events.pagerduty.com/v2/enqueue"
+        response_code="202"
+      else
+        payload="$(
+          cat <<EOF
+            {
+              "service_key": "${PD_SERVICE_KEY}",
+              "event_type": "${t}",
+              "incident_key" : "${alarm_id}",
+              "description": "${d}",
+              "details": {
+                "value_w_units": "${value_string}",
+                "when": "${when}",
+                "duration" : "${duration}",
+                "roles": "${roles}",
+                "alarm_id" : "${alarm_id}",
+                "name" : "${name}",
+                "chart" : "${chart}",
+                "status" : "${status}",
+                "old_status" : "${old_status}",
+                "value" : "${value}",
+                "old_value" : "${old_value}",
+                "src" : "${src}",
+                "non_clear_duration" : "${non_clear_duration}",
+                "units" : "${units}",
+                "info" : "${info}"
+              }
+            }
+EOF
+        )"
+        url="https://events.pagerduty.com/generic/2010-04-15/create_event.json"
+        response_code="200"
+      fi
+      httpcode=$(docurl -X POST --data "${payload}" ${url})
+      if [ "${httpcode}" = "${response_code}" ]; then
+        info "sent pagerduty event for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send pagerduty event for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# twilio sender
+
+send_twilio() {
+  local accountsid="${1}" accounttoken="${2}" twilionumber="${3}" recipients="${4}" title="${5}" message="${6}" httpcode sent=0 user
+  if [ "${SEND_TWILIO}" = "YES" ] && [ -n "${accountsid}" ] && [ -n "${accounttoken}" ] && [ -n "${twilionumber}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
+    #https://www.twilio.com/packages/labs/code/bash/twilio-sms
+    for user in ${recipients}; do
+      httpcode=$(docurl -X POST \
+        --data-urlencode "From=${twilionumber}" \
+        --data-urlencode "To=${user}" \
+        --data-urlencode "Body=${title} ${message}" \
+        -u "${accountsid}:${accounttoken}" \
+        "https://api.twilio.com/2010-04-01/Accounts/${accountsid}/Messages.json")
+
+      if [ "${httpcode}" = "201" ]; then
+        info "sent Twilio SMS to '${user}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send Twilio SMS to '${user}' for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# hipchat sender
+
+send_hipchat() {
+  local authtoken="${1}" recipients="${2}" message="${3}" httpcode sent=0 room color msg_format notify
+
+  # remove <small></small> from the message
+  message="${message//<small>/}"
+  message="${message//<\/small>/}"
+
+  if [ "${SEND_HIPCHAT}" = "YES" ] && [ -n "${HIPCHAT_SERVER}" ] && [ -n "${authtoken}" ] && [ -n "${recipients}" ] && [ -n "${message}" ]; then
+    # Valid values: html, text.
+    # Defaults to 'html'.
+    msg_format="html"
+
+    # Background color for message. Valid values: yellow, green, red, purple, gray, random. Defaults to 'yellow'.
+    case "${status}" in
+    WARNING) color="yellow" ;;
+    CRITICAL) color="red" ;;
+    CLEAR) color="green" ;;
+    *) color="gray" ;;
+    esac
+
+    # Whether this message should trigger a user notification (change the tab color, play a sound, notify mobile phones, etc).
+    # Each recipient's notification preferences are taken into account.
+    # Defaults to false.
+    notify="true"
+
+    for room in ${recipients}; do
+      httpcode=$(docurl -X POST \
+        -H "Content-type: application/json" \
+        -H "Authorization: Bearer ${authtoken}" \
+        -d "{\"color\": \"${color}\", \"from\": \"${host}\", \"message_format\": \"${msg_format}\", \"message\": \"${message}\", \"notify\": \"${notify}\"}" \
+        "https://${HIPCHAT_SERVER}/v2/room/${room}/notification")
+
+      if [ "${httpcode}" = "204" ]; then
+        info "sent HipChat notification to '${room}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send HipChat notification to '${room}' for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# messagebird sender
+
+send_messagebird() {
+  local accesskey="${1}" messagebirdnumber="${2}" recipients="${3}" title="${4}" message="${5}" httpcode sent=0 user
+  if [ "${SEND_MESSAGEBIRD}" = "YES" ] && [ -n "${accesskey}" ] && [ -n "${messagebirdnumber}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
+    #https://developers.messagebird.com/docs/messaging
+    for user in ${recipients}; do
+      httpcode=$(docurl -X POST \
+        --data-urlencode "originator=${messagebirdnumber}" \
+        --data-urlencode "recipients=${user}" \
+        --data-urlencode "body=${title} ${message}" \
+        --data-urlencode "datacoding=auto" \
+        -H "Authorization: AccessKey ${accesskey}" \
+        "https://rest.messagebird.com/messages")
+
+      if [ "${httpcode}" = "201" ]; then
+        info "sent Messagebird SMS to '${user}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send Messagebird SMS to '${user}' for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# kavenegar sender
+
+send_kavenegar() {
+  local API_KEY="${1}" kavenegarsender="${2}" recipients="${3}" title="${4}" message="${5}" httpcode sent=0 user
+  if [ "${SEND_KAVENEGAR}" = "YES" ] && [ -n "${API_KEY}" ] && [ -n "${kavenegarsender}" ] && [ -n "${recipients}" ] && [ -n "${message}" ] && [ -n "${title}" ]; then
+    # http://api.kavenegar.com/v1/{API-KEY}/sms/send.json
+    for user in ${recipients}; do
+      httpcode=$(docurl -X POST http://api.kavenegar.com/v1/${API_KEY}/sms/send.json \
+        --data-urlencode "sender=${kavenegarsender}" \
+        --data-urlencode "receptor=${user}" \
+        --data-urlencode "message=${title} ${message}")
+
+      if [ "${httpcode}" = "200" ]; then
+        info "sent Kavenegar SMS to '${user}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send Kavenegar SMS to '${user}' for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# telegram sender
+
+send_telegram() {
+  local bottoken="${1}" chatids="${2}" message="${3}" httpcode sent=0 chatid emoji disableNotification=""
+
+  if [ "${status}" = "CLEAR" ]; then disableNotification="--data-urlencode disable_notification=true"; fi
+
+  case "${status}" in
+  WARNING) emoji="⚠️" ;;
+  CRITICAL) emoji="🔴" ;;
+  CLEAR) emoji="✅" ;;
+  *) emoji="⚪️" ;;
+  esac
+
+  if [ "${SEND_TELEGRAM}" = "YES" ] && [ -n "${bottoken}" ] && [ -n "${chatids}" ] && [ -n "${message}" ]; then
+    for chatid in ${chatids}; do
+      notify_telegram=1
+      notify_retries=${TELEGRAM_RETRIES_ON_LIMIT:-0}
+
+      while [ ${notify_telegram} -eq 1 ]; do
+        # https://core.telegram.org/bots/api#sendmessage
+        httpcode=$(docurl ${disableNotification} \
+          --data-urlencode "parse_mode=HTML" \
+          --data-urlencode "disable_web_page_preview=true" \
+          --data-urlencode "text=${emoji} ${message}" \
+          "https://api.telegram.org/bot${bottoken}/sendMessage?chat_id=${chatid}")
+
+        notify_telegram=0
+
+        if [ "${httpcode}" = "200" ]; then
+          info "sent telegram notification to '${chatid}' for ${notification_description}"
+          sent=$((sent + 1))
+        elif [ "${httpcode}" = "401" ]; then
+          error "failed to send telegram notification to '${chatid}' for ${notification_description}, wrong bot token."
+        elif [ "${httpcode}" = "429" ]; then
+          if [ "$notify_retries" -gt 0 ]; then
+            error "failed to send telegram notification to '${chatid}' for ${notification_description}, rate limit exceeded, retrying after 1s."
+            notify_retries=$((notify_retries - 1))
+            notify_telegram=1
+            sleep 1
+          else
+            error "failed to send telegram notification to '${chatid}' for ${notification_description}, rate limit exceeded."
+          fi
+        else
+          error "failed to send telegram notification to '${chatid}' for ${notification_description}, with HTTP response status code ${httpcode}."
+        fi
+      done
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# Microsoft Team sender
+
+send_msteams() {
+
+  local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
+
+  [ "${SEND_MSTEAMS}" != "YES" ] && return 1
+
+  case "${status}" in
+  WARNING) icon="${MSTEAMS_ICON_WARNING}" && color="${MSTEAMS_COLOR_WARNING}" ;;
+  CRITICAL) icon="${MSTEAMS_ICON_CRITICAL}" && color="${MSTEAMS_COLOR_CRITICAL}" ;;
+  CLEAR) icon="${MSTEAMS_ICON_CLEAR}" && color="${MSTEAMS_COLOR_CLEAR}" ;;
+  *) icon="${MSTEAMS_ICON_DEFAULT}" && color="${MSTEAMS_COLOR_DEFAULT}" ;;
+  esac
+
+  for channel in ${channels}; do
+    ## More details are available here regarding the payload syntax options : https://docs.microsoft.com/en-us/outlook/actionable-messages/message-card-reference
+    ## Online designer : https://adaptivecards.io/designer/
+    payload="$(
+      cat <<EOF
+        {
+            "@context": "http://schema.org/extensions",
+            "@type": "MessageCard",
+            "themeColor": "${color}",
+            "title": "$icon Alert ${status} from netdata for ${host}",
+            "text": "${host} ${status_message}, ${chart}, *${alarm}*",
+            "potentialAction": [
+            {
+                "@type": "OpenUri",
+                "name": "Netdata",
+                "targets": [
+                { "os": "default", "uri": "${goto_url}" }
+                ]
+            }
+            ]
+        }
+EOF
+    )"
+
+    # Replacing in the webhook CHANNEL string by the MS Teams channel name from conf file.
+    cur_webhook="${webhook//CHANNEL/${channel}}"
+
+    httpcode=$(docurl -H "Content-Type: application/json" -d "${payload}" "${cur_webhook}")
+
+    if [ "${httpcode}" = "200" ]; then
+      info "sent Microsoft team notification to '${cur_webhook}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send Microsoft team to '${cur_webhook}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# slack sender
+
+send_slack() {
+  local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
+
+  [ "${SEND_SLACK}" != "YES" ] && return 1
+
+  case "${status}" in
+  WARNING) color="warning" ;;
+  CRITICAL) color="danger" ;;
+  CLEAR) color="good" ;;
+  *) color="#777777" ;;
+  esac
+
+  for channel in ${channels}; do
+    # Default entry in the recipient is without a hash in front (backwards-compatible). Accept specification of channel or user.
+    if [ "${channel::1}" != "#" ] && [ "${channel::1}" != "@" ]; then channel="#$channel"; fi
+
+    # If channel is equal to "#" then do not send the channel attribute at all. Slack also defines channels and users in webhooks.
+    if [ "${channel}" = "#" ]; then
+      ch=""
+      chstr="without specifying a channel"
+    else
+      ch="\"channel\": \"${channel}\","
+      chstr="to '${channel}'"
+    fi
+
+    payload="$(
+      cat <<EOF
+        {
+            $ch
+            "username": "netdata on ${host}",
+            "icon_url": "${images_base_url}/images/banner-icon-144x144.png",
+            "text": "${host} ${status_message}, \`${chart}\`, *${alarm}*",
+            "attachments": [
+                {
+                    "fallback": "${alarm} - ${chart} - ${info}",
+                    "color": "${color}",
+                    "title": "${alarm}",
+                    "title_link": "${goto_url}",
+                    "text": "${info}",
+                    "fields": [
+                        {
+                            "title": "${chart}",
+                            "value": "chart",
+                            "short": true
+                        }
+                    ],
+                    "thumb_url": "${image}",
+                    "footer": "by ${host}",
+                    "ts": ${when}
+                }
+            ]
+        }
+EOF
+    )"
+
+    httpcode=$(docurl -X POST --data-urlencode "payload=${payload}" "${webhook}")
+    if [ "${httpcode}" = "200" ]; then
+      info "sent slack notification ${chstr} for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send slack notification ${chstr} for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# rocketchat sender
+
+send_rocketchat() {
+  local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
+
+  [ "${SEND_ROCKETCHAT}" != "YES" ] && return 1
+
+  case "${status}" in
+  WARNING) color="warning" ;;
+  CRITICAL) color="danger" ;;
+  CLEAR) color="good" ;;
+  *) color="#777777" ;;
+  esac
+
+  for channel in ${channels}; do
+    payload="$(
+      cat <<EOF
+        {
+            "channel": "#${channel}",
+            "alias": "netdata on ${host}",
+            "avatar": "${images_base_url}/images/banner-icon-144x144.png",
+            "text": "${host} ${status_message}, \`${chart}\`, *${alarm}*",
+            "attachments": [
+                {
+                    "color": "${color}",
+                    "title": "${alarm}",
+                    "title_link": "${goto_url}",
+                    "text": "${info}",
+                    "fields": [
+                        {
+                            "title": "${chart}",
+                            "short": true,
+                            "value": "chart"
+                        }
+                    ],
+                    "thumb_url": "${image}",
+                    "ts": "${when}"
+                }
+            ]
+        }
+EOF
+    )"
+
+    httpcode=$(docurl -X POST --data-urlencode "payload=${payload}" "${webhook}")
+    if [ "${httpcode}" = "200" ]; then
+      info "sent rocketchat notification to '${channel}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send rocketchat notification to '${channel}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# alerta sender
+
+send_alerta() {
+  local webhook="${1}" channels="${2}" httpcode sent=0 channel severity resource event payload auth
+
+  [ "${SEND_ALERTA}" != "YES" ] && return 1
+
+  case "${status}" in
+  CRITICAL) severity="critical" ;;
+  WARNING) severity="warning" ;;
+  CLEAR) severity="cleared" ;;
+  *) severity="indeterminate" ;;
+  esac
+
+  if [[ ${chart} == httpcheck* ]]; then
+    resource=$chart
+    event=$name
+  else
+    resource="${host}"
+    event="${chart}.${name}"
+  fi
+
+  for channel in ${channels}; do
+    payload="$(
+      cat <<EOF
+        {
+            "resource": "${resource}",
+            "event": "${event}",
+            "environment": "${channel}",
+            "severity": "${severity}",
+            "service": ["Netdata"],
+            "group": "Performance",
+            "value": "${value_string}",
+            "text": "${info}",
+            "tags": ["alarm_id:${alarm_id}"],
+            "attributes": {
+                "roles": "${roles}",
+                "name": "${name}",
+                "chart": "${chart}",
+                "source": "${src}",
+                "moreInfo": "<a href=\"${goto_url}\">View Netdata</a>"
+            },
+            "origin": "netdata/${host}",
+            "type": "netdataAlarm",
+            "rawData": "${BASH_ARGV[@]}"
+        }
+EOF
+    )"
+
+    if [ -n "${ALERTA_API_KEY}" ]; then
+      auth="Key ${ALERTA_API_KEY}"
+    fi
+
+    httpcode=$(docurl -X POST "${webhook}/alert" -H "Content-Type: application/json" -H "Authorization: $auth" --data "${payload}")
+
+    if [ "${httpcode}" = "200" ] || [ "${httpcode}" = "201" ]; then
+      info "sent alerta notification to '${channel}' for ${notification_description}"
+      sent=$((sent + 1))
+    elif [ "${httpcode}" = "202" ]; then
+      info "suppressed alerta notification to '${channel}' for ${notification_description}"
+    else
+      error "failed to send alerta notification to '${channel}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# flock sender
+
+send_flock() {
+  local webhook="${1}" channels="${2}" httpcode sent=0 channel color payload
+
+  [ "${SEND_FLOCK}" != "YES" ] && return 1
+
+  case "${status}" in
+  WARNING) color="warning" ;;
+  CRITICAL) color="danger" ;;
+  CLEAR) color="good" ;;
+  *) color="#777777" ;;
+  esac
+
+  for channel in ${channels}; do
+    httpcode=$(docurl -X POST "${webhook}" -H "Content-Type: application/json" -d "{
+            \"sendAs\": {
+                \"name\" : \"netdata on ${host}\",
+                \"profileImage\" : \"${images_base_url}/images/banner-icon-144x144.png\"
+            },
+            \"text\": \"${host} *${status_message}*\",
+            \"timestamp\": \"${when}\",
+            \"attachments\": [
+                {
+                    \"description\": \"${chart} - ${info}\",
+                    \"color\": \"${color}\",
+                    \"title\": \"${alarm}\",
+                    \"url\": \"${goto_url}\",
+                    \"text\": \"${info}\",
+                    \"views\": {
+                        \"image\": {
+                            \"original\": { \"src\": \"${image}\", \"width\": 400, \"height\": 400 },
+                            \"thumbnail\": { \"src\": \"${image}\", \"width\": 50, \"height\": 50 },
+                            \"filename\": \"${image}\"
+                            }
+                    }
+                }
+            ]
+        }")
+    if [ "${httpcode}" = "200" ]; then
+      info "sent flock notification to '${channel}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send flock notification to '${channel}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# discord sender
+
+send_discord() {
+  local webhook="${1}/slack" channels="${2}" httpcode sent=0 channel color payload username
+
+  [ "${SEND_DISCORD}" != "YES" ] && return 1
+
+  case "${status}" in
+  WARNING) color="warning" ;;
+  CRITICAL) color="danger" ;;
+  CLEAR) color="good" ;;
+  *) color="#777777" ;;
+  esac
+
+  for channel in ${channels}; do
+    username="netdata on ${host}"
+    [ ${#username} -gt 32 ] && username="${username:0:29}..."
+
+    payload="$(
+      cat <<EOF
+        {
+            "channel": "#${channel}",
+            "username": "${username}",
+            "text": "${host} ${status_message}, \`${chart}\`, *${alarm}*",
+            "icon_url": "${images_base_url}/images/banner-icon-144x144.png",
+            "attachments": [
+                {
+                    "color": "${color}",
+                    "title": "${alarm}",
+                    "title_link": "${goto_url}",
+                    "text": "${info}",
+                    "fields": [
+                        {
+                            "title": "${chart}"
+                        }
+                    ],
+                    "thumb_url": "${image}",
+                    "footer_icon": "${images_base_url}/images/banner-icon-144x144.png",
+                    "footer": "${host}",
+                    "ts": ${when}
+                }
+            ]
+        }
+EOF
+    )"
+
+    httpcode=$(docurl -X POST --data-urlencode "payload=${payload}" "${webhook}")
+    if [ "${httpcode}" = "200" ]; then
+      info "sent discord notification to '${channel}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send discord notification to '${channel}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# fleep sender
+
+send_fleep() {
+  local httpcode sent=0 webhooks="${1}" data message
+  if [ "${SEND_FLEEP}" = "YES" ]; then
+    message="${host} ${status_message}, \`${chart}\`, *${alarm}*\\n${info}"
+
+    for hook in ${webhooks}; do
+      data="{ "
+      data="${data} 'message': '${message}', "
+      data="${data} 'user': '${FLEEP_SENDER}' "
+      data="${data} }"
+
+      httpcode=$(docurl -X POST --data "${data}" "https://fleep.io/hook/${hook}")
+
+      if [ "${httpcode}" = "200" ]; then
+        info "sent fleep data to user '${FLEEP_SENDER}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send fleep data to user '${FLEEP_SENDER}' for ${notification_description}, with HTTP response status code ${httpcode}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# Prowl sender
+
+send_prowl() {
+  local httpcode sent=0 data message keys prio=0 alarm_url event
+  if [ "${SEND_PROWL}" = "YES" ]; then
+    message="$(urlencode "${host} ${status_message}, \`${chart}\`, *${alarm}*\\n${info}")"
+    message="description=${message}"
+    keys="$(urlencode "$(echo "${1}" | tr ' ' ,)")"
+    keys="apikey=${keys}"
+    app="application=Netdata"
+
+    case "${status}" in
+    CRITICAL)
+      prio=2
+      ;;
+    WARNING)
+      prio=1
+      ;;
+    esac
+    prio="priority=${prio}"
+
+    alarm_url="$(urlencode ${goto_url})"
+    alarm_url="url=${alarm_url}"
+    event="$(urlencode "${host} ${status_message}")"
+    event="event=${event}"
+
+    data="${keys}&${prio}&${alarm_url}&${app}&${event}&${message}"
+
+    httpcode=$(docurl -X POST --data "${data}" "https://api.prowlapp.com/publicapi/add")
+
+    if [ "${httpcode}" = "200" ]; then
+      info "sent prowl event for ${notification_description}"
+      sent=1
+    else
+      error "failed to send prowl event for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# irc sender
+
+send_irc() {
+  local NICKNAME="${1}" REALNAME="${2}" CHANNELS="${3}" NETWORK="${4}" PORT="${5}" SERVERNAME="${6}" MESSAGE="${7}" sent=0 channel color send_alarm reply_codes error
+
+  if [ "${SEND_IRC}" = "YES" ] && [ -n "${NICKNAME}" ] && [ -n "${REALNAME}" ] && [ -n "${CHANNELS}" ] && [ -n "${NETWORK}" ] && [ -n "${SERVERNAME}" ] && [ -n "${PORT}" ]; then
+    case "${status}" in
+    WARNING) color="warning" ;;
+    CRITICAL) color="danger" ;;
+    CLEAR) color="good" ;;
+    *) color="#777777" ;;
+    esac
+
+    SNDMESSAGE="${MESSAGE//$'\n'/", "}"
+    for CHANNEL in ${CHANNELS}; do
+      error=0
+      send_alarm=$(echo -e "USER ${NICKNAME} guest ${REALNAME} ${SERVERNAME}\\nNICK ${NICKNAME}\\nJOIN ${CHANNEL}\\nPRIVMSG ${CHANNEL} :${SNDMESSAGE}\\nQUIT\\n" \  | ${nc} "${NETWORK}" "${PORT}")
+      reply_codes=$(echo "${send_alarm}" | cut -d ' ' -f 2 | grep -o '[0-9]*')
+      for code in ${reply_codes}; do
+        if [ "${code}" -ge 400 ] && [ "${code}" -le 599 ]; then
+          error=1
+          break
+        fi
+      done
+
+      if [ "${error}" -eq 0 ]; then
+        info "sent irc notification to '${CHANNEL}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send irc notification to '${CHANNEL}' for ${notification_description}, with error code ${code}."
+      fi
+    done
+  fi
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# Amazon SNS sender
+
+send_awssns() {
+  local targets="${1}" message='' sent=0 region=''
+  local default_format="${status} on ${host} at ${date}: ${chart} ${value_string}"
+
+  [ "${SEND_AWSSNS}" = "YES" ] || return 1
+
+  message=${AWSSNS_MESSAGE_FORMAT:-${default_format}}
+
+  for target in ${targets}; do
+    # Extract the region from the target ARN.  We need to explicitly specify the region so that it matches up correctly.
+    region="$(echo ${target} | cut -f 4 -d ':')"
+    if ${aws} sns publish --region "${region}" --subject "${host} ${status_message} - ${name//_/ } - ${chart}" --message "${message}" --target-arn ${target} &>/dev/null; then
+      info "sent Amazon SNS notification to '${target}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send Amazon SNS notification to '${target}' for ${notification_description}"
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# Matrix sender
+
+send_matrix() {
+  local homeserver="${1}" webhook accesstoken rooms="${2}" httpcode sent=0 payload
+
+  [ "${SEND_MATRIX}" != "YES" ] && return 1
+  [ -z "${MATRIX_ACCESSTOKEN}" ] && return 1
+
+  accesstoken="${MATRIX_ACCESSTOKEN}"
+
+  case "${status}" in
+  WARNING) emoji="⚠️" ;;
+  CRITICAL) emoji="🔴" ;;
+  CLEAR) emoji="✅" ;;
+  *) emoji="⚪️" ;;
+  esac
+
+  for room in ${rooms}; do
+    webhook="$homeserver/_matrix/client/r0/rooms/$(urlencode $room)/send/m.room.message?access_token=$accesstoken"
+    payload="$(
+  cat <<EOF
+  {
+    "msgtype": "m.notice",
+    "format": "org.matrix.custom.html",
+      "formatted_body": "${emoji} ${host} ${status_message} - <b>${name//_/ }</b><br>${chart}<br><a href=\"${goto_url}\">${alarm}</a><br><i>${info}</i>",
+      "body": "${emoji} ${host} ${status_message} - ${name//_/ } ${chart} ${goto_url} ${alarm} ${info}"
+  }
+EOF
+    )"
+
+    httpcode=$(docurl -X POST --data "${payload}" "${webhook}")
+    if [ "${httpcode}" == "200" ]; then
+      info "sent Matrix notification to '${room}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send Matrix notification to '${room}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# syslog sender
+
+send_syslog() {
+  local facility=${SYSLOG_FACILITY:-"local6"} level='info' targets="${1}"
+  local priority='' message='' server='' port='' prefix=''
+  local temp1='' temp2=''
+
+  [ "${SEND_SYSLOG}" = "YES" ] || return 1
+
+  if [ "${status}" = "CRITICAL" ]; then
+    level='crit'
+  elif [ "${status}" = "WARNING" ]; then
+    level='warning'
+  fi
+
+  for target in ${targets}; do
+    priority="${facility}.${level}"
+    message=''
+    server=''
+    port=''
+    prefix=''
+    temp1=''
+    temp2=''
+
+    prefix=$(echo ${target} | cut -d '/' -f 2)
+    temp1=$(echo ${target} | cut -d '/' -f 1)
+
+    if [ ${prefix} != ${temp1} ]; then
+      if (echo ${temp1} | grep -q '@'); then
+        temp2=$(echo ${temp1} | cut -d '@' -f 1)
+        server=$(echo ${temp1} | cut -d '@' -f 2)
+
+        if [ ${temp2} != ${server} ]; then
+          priority=${temp2}
+        fi
+
+        port=$(echo ${server} | rev | cut -d ':' -f 1 | rev)
+
+        if (echo ${server} | grep -E -q '\[.*\]'); then
+          if (echo ${port} | grep -q ']'); then
+            port=''
+          else
+            server=$(echo ${server} | rev | cut -d ':' -f 2- | rev)
+          fi
+        else
+          if [ ${port} = ${server} ]; then
+            port=''
+          else
+            server=$(echo ${server} | cut -d ':' -f 1)
+          fi
+        fi
+      else
+        priority=${temp1}
+      fi
+    fi
+
+    message="${prefix} ${status} on ${host} at ${date}: ${chart} ${value_string}"
+
+    if [ ${server} ]; then
+      logger_options="${logger_options} -n ${server}"
+      if [ ${port} ]; then
+        logger_options="${logger_options} -P ${port}"
+      fi
+    fi
+
+    ${logger} -p ${priority} ${logger_options} "${message}"
+  done
+
+  return $?
+}
+
+# -----------------------------------------------------------------------------
+# SMS sender
+
+send_sms() {
+  local recipients="${1}" errcode errmessage sent=0
+
+    # Human readable SMS
+    local msg="${host} ${status_message}: ${chart}, ${alarm}"
+
+    # limit it to 160 characters
+    msg="${msg:0:160}"
+
+  if [ "${SEND_SMS}" = "YES" ] && [ -n "${sendsms}" ] && [ -n "${recipients}" ] && [ -n "${msg}" ]; then
+    # http://api.kavenegar.com/v1/{API-KEY}/sms/send.json
+    for phone in ${recipients}; do
+      errmessage=$($sendsms $phone "$msg" 2>&1)
+      errcode=$?
+      if [ ${errcode} -eq 0 ]; then
+        info "sent smstools3 SMS to '${user}' for ${notification_description}"
+        sent=$((sent + 1))
+      else
+        error "failed to send smstools3 SMS to '${user}' for ${notification_description}, with error code ${errcode}: ${errmessage}."
+      fi
+    done
+
+    [ ${sent} -gt 0 ] && return 0
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# Dynatrace sender
+
+send_dynatrace() {
+  [ "${SEND_DYNATRACE}" != "YES" ] && return 1
+
+  local dynatrace_url="${DYNATRACE_SERVER}/e/${DYNATRACE_SPACE}/api/v1/events"
+  local description="Netdata Notification for: ${host} ${chart}.${name} is ${status}"
+  local payload=""
+
+  payload=$(cat <<EOF
+{
+  "title": "Netdata Alarm from ${host}",
+  "source" : "${DYNATRACE_ANNOTATION_TYPE}",
+  "description" : "${description}",
+  "eventType": "${DYNATRACE_EVENT}",
+   "attachRules":{
+     "tagRule":[{
+        "meTypes":["HOST"],
+        "tags":["${DYNATRACE_TAG_VALUE}"]
+     }]
+  },
+  "customProperties":{
+    "description": "${description}"
+  }
+}
+EOF
+)
+
+  # echo ${payload}
+
+  httpcode=$(docurl -X POST  -H "Authorization: Api-token ${DYNATRACE_TOKEN}"  -H "Content-Type: application/json" -d "${payload}"    ${dynatrace_url})
+  ret=$?
+
+
+  if [ ${ret} -eq 0 ]; then
+     if [ "${httpcode}" = "200" ]; then
+        info "sent Dynatrace event '${DYNATRACE_EVENT}' to '${DYNATRACE_SERVER}' for ${notification_description}"
+        return 0
+     else
+        warning "failed to send Dynatrace event to '${DYNATRACE_SERVER}' for ${notification_description}, with HTTP response status code ${httpcode}"
+        return 1
+     fi
+  else
+     error  "failed to sent Dynatrace '${DYNATRACE_EVENT}' to '${DYNATRACE_SERVER}' for ${notification_description}, with code ${ret}."
+     return 1
+  fi
+}
+
+# -----------------------------------------------------------------------------
+# Opsgenie sender
+
+send_opsgenie() {
+  local payload httpcode oldv currv priority
+  [ "${SEND_OPSGENIE}" != "YES" ] && return 1
+
+  if [ -z "${OPSGENIE_API_KEY}" ] ; then
+    info "Can't send Opsgenie notification, because OPSGENIE_API_KEY is not defined"
+    return 1
+  fi
+
+  # Priority for OpsGenie alert (https://support.atlassian.com/opsgenie/docs/update-alert-priority-level/)
+  case "${status}" in
+  CRITICAL) priority="P1" ;; # Critical is P1
+  WARNING) priority="P3" ;; # Warning is P3
+  CLEAR) priority="P5" ;; # Clear is P5
+  *) priority="P3" ;; # OpsGenie's default alert level is P3
+  esac
+
+  # We are sending null when values are nan to avoid errors while JSON message is parsed
+  [ "${old_value}" != "nan" ] && oldv="${old_value}" ||  oldv="null"
+  [ "${value}" != "nan" ] && currv="${value}" || currv="null"
+
+  payload=$(cat <<EOF
+  {
+    "host" : "${host}",
+    "unique_id" : "${unique_id}",
+    "alarmId" : ${alarm_id},
+    "eventId" : ${event_id},
+    "chart" : "${chart}",
+    "when": ${when},
+    "name" : "${name}",
+    "priority" : "${priority}",
+    "status" : "${status}",
+    "old_status" : "${old_status}",
+    "value" : ${currv},
+    "old_value" : ${oldv},
+    "duration": ${duration},
+    "non_clear_duration": ${non_clear_duration},
+    "units" : "${units}",
+    "info" : "${status_message}, ${info}",
+    "calc_expression" : "${calc_expression}",
+    "total_warnings" : "${total_warnings}",
+    "total_critical" : "${total_critical}",
+    "src" : "${src}"
+  }
+EOF
+)
+
+  httpcode=$(docurl -X POST -H "Content-Type: application/json" -d "${payload}" "${OPSGENIE_API_URL}/v1/json/integrations/webhooks/netdata?apiKey=${OPSGENIE_API_KEY}")
+  # https://docs.opsgenie.com/docs/alert-api#create-alert
+  if [ "${httpcode}" = "200" ]; then
+    info "sent opsgenie event for ${notification_description}"
+  else
+    error "failed to send opsgenie event for ${notification_description}, with HTTP response status code ${httpcode}."
+    return 1
+  fi
+
+  return 0
+}
+
+# -----------------------------------------------------------------------------
+# Gotify sender
+
+send_gotify() {
+  local payload httpcode priority
+  [ "${SEND_GOTIFY}" != "YES" ] && return 1
+
+  if [ -z "${GOTIFY_APP_TOKEN}" ] ; then
+    info "Can't send Gotify notification, because GOTIFY_APP_TOKEN is not defined"
+    return 1
+  fi
+
+  # priority for Gotify Android app
+  case "${status}" in
+    CRITICAL) priority=10 ;; # sound + vibration
+    WARNING) priority=4 ;; # sound
+    *) priority=1 ;; # notification only
+  esac
+
+  payload=$(cat <<EOF
+  {
+    "title" : "${status}, ${name} = ${value_string}, on ${host}",
+    "message" : "${date}: ${chart} ${value_string}",
+    "priority" : ${priority}
+  }
+EOF
+)
+
+  httpcode=$(docurl -X POST -H "Content-Type: application/json" -d "${payload}" "${GOTIFY_APP_URL}/message?token=${GOTIFY_APP_TOKEN}")
+  if [ "${httpcode}" = "200" ]; then
+    info "sent gotify event for ${notification_description}"
+  else
+    error "failed to send gotify event for ${notification_description}, with HTTP response status code ${httpcode}."
+    return 1
+  fi
+
+  return 0
+}
+
+# -----------------------------------------------------------------------------
+# ntfy sender
+
+send_ntfy() {
+  local httpcode priority recipients=${1} sent=0 msg
+
+  [ "${SEND_NTFY}" != "YES" ] && return 1
+
+  case "${status}" in
+    WARNING) emoji="warning" ;;
+    CRITICAL) emoji="red_circle" ;;
+    CLEAR) emoji="white_check_mark" ;;
+    *) emoji="white_circle" ;;
+  esac
+
+  case ${status} in
+    WARNING) priority="high";;
+    CRITICAL) priority="urgent";;
+    *) priority="default" ;;
+  esac
+
+  # Adding ntfy header generation logic
+  # Heavily inspired by https://github.com/nickexyz/ntfy-shellscripts/blob/main/sabnzbd.sh
+  tmp_header=""
+  if [[ -n "${NTFY_USERNAME}" ]] && [[ -n "${NTFY_PASSWORD}" ]]; then
+    ntfy_base64=$( echo -n "$NTFY_USERNAME:$NTFY_PASSWORD" | base64 )
+    tmp_header="Authorization: Basic ${ntfy_base64}"
+  elif [ -n "${NTFY_ACCESS_TOKEN}" ]; then
+    tmp_header="Authorization: Bearer ${NTFY_ACCESS_TOKEN}"
+  fi
+  ntfy_auth_header=()
+  if [ -n "${tmp_header}" ]; then
+    ntfy_auth_header=("-H" "${tmp_header}")
+  fi
+  for recipient in ${recipients}; do
+    msg="${host} ${status_message}: ${alarm} - ${info}"
+    httpcode=$(docurl -X POST \
+                      "${ntfy_auth_header[@]}" \
+                      -H "Icon: https://raw.githubusercontent.com/netdata/netdata/master/src/web/gui/dashboard/images/favicon-196x196.png" \
+                      -H "Title: ${host}: ${name//_/ }" \
+                      -H "Tags: ${emoji}" \
+                      -H "Priority: ${priority}" \
+                      -H "Actions: view, View node, ${goto_url}, clear=true;" \
+                      -d "${msg}" \
+                      ${recipient})
+    if [ "${httpcode}" == "200" ]; then
+      info "sent ntfy notification to '${recipient}' for ${notification_description}"
+      sent=$((sent + 1))
+    else
+      error "failed to send ntfy notification to '${recipient}' for ${notification_description}, with HTTP response status code ${httpcode}."
+    fi
+  done
+
+  [ ${sent} -gt 0 ] && return 0
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# prepare the content of the notification
+
+# the url to send the user on click
+urlencode "${args_host}" >/dev/null
+url_host="${REPLY}"
+urlencode "${chart}" >/dev/null
+url_chart="${REPLY}"
+urlencode "${name}" >/dev/null
+url_name="${REPLY}"
+urlencode "${value_string}" >/dev/null
+url_value_string="${REPLY}"
+
+redirect_params="host=${url_host}&chart=${url_chart}&alarm=${url_name}&alarm_unique_id=${unique_id}&alarm_id=${alarm_id}&alarm_event_id=${event_id}&alarm_when=${when}&alarm_status=${status}&alarm_chart=${chart}&alarm_value=${url_value_string}"
+
+if [ -z "${NETDATA_REGISTRY_UNIQUE_ID}" ]; then
+  if [ -f "@registrydir_POST@/netdata.public.unique.id" ]; then
+    NETDATA_REGISTRY_UNIQUE_ID="$(cat "@registrydir_POST@/netdata.public.unique.id")"
+  else
+    error "failed to identify this agent via its NETDATA_REGISTRY_UNIQUE_ID."
+  fi
+fi
+
+goto_url="${NETDATA_REGISTRY_URL}/registry-alert-redirect.html?agent_machine_guid=${NETDATA_REGISTRY_UNIQUE_ID}&host_machine_guid=${child_machine_guid}&transition_id=${transition_id}&${redirect_params}"
+
+# the severity of the alarm
+severity="${status}"
+
+# the time the alarm was raised
+duration4human ${duration} >/dev/null
+duration_txt="${REPLY}"
+duration4human ${non_clear_duration} >/dev/null
+non_clear_duration_txt="${REPLY}"
+raised_for="(was ${old_status,,} for ${duration_txt})"
+
+# the key status message
+status_message="status unknown"
+
+# the color of the alarm
+color="grey"
+
+# the alarm value
+alarm="${summary//_/ } = ${value_string}"
+
+# the image of the alarm
+image="${images_base_url}/images/banner-icon-144x144.png"
+
+# have a default email status, in case the following case does not catch it
+status_email_subject="${status}"
+
+# prepare the title based on status
+case "${status}" in
+CRITICAL)
+  image="${images_base_url}/images/alert-128-red.png"
+  alarm_badge="https://app.netdata.cloud/static/email/img/label_critical.png"
+  status_message="is critical"
+  status_email_subject="Critical"
+  color="#ca414b"
+  rich_status_raised_for="Raised to critical, for ${non_clear_duration_txt}"
+  background_color="#FFEBEF"
+  border_color="#FF4136"
+  text_color="#FF4136"
+  action_text_color="#FFFFFF"
+  ;;
+
+WARNING)
+  image="${images_base_url}/images/alert-128-orange.png"
+  alarm_badge="https://app.netdata.cloud/static/email/img/label_warning.png"
+  status_message="needs attention"
+  status_email_subject="Warning"
+  color="#ffc107"
+  rich_status_raised_for="Raised to warning, for ${non_clear_duration_txt}"
+  background_color="#FFF8E1"
+  border_color="#FFC300"
+  text_color="#536775"
+  action_text_color="#35414A"
+  ;;
+
+CLEAR)
+  image="${images_base_url}/images/check-mark-2-128-green.png"
+  alarm_badge="https://app.netdata.cloud/static/email/img/label_recovered.png"
+  status_message="recovered"
+  status_email_subject="Clear"
+  color="#77ca6d"
+  rich_status_raised_for=
+  background_color="#E5F5E8"
+  border_color="#68C47D"
+  text_color="#00AB44"
+  action_text_color="#FFFFFF"
+  ;;
+esac
+
+# the html email subject
+html_email_subject="${status_email_subject}, ${summary} = ${value_string}, on ${host}"
+
+if [ "${status}" = "CLEAR" ]; then
+  severity="Recovered from ${old_status}"
+  if [ ${non_clear_duration} -gt ${duration} ]; then
+    raised_for="(alarm was raised for ${non_clear_duration_txt})"
+  fi
+  rich_status_raised_for="Recovered from ${old_status,,}, ${raised_for}"
+
+  # don't show the value when the status is CLEAR
+  # for certain alarms, this value might not have any meaning
+  alarm="${summary//_/ } ${raised_for}"
+  html_email_subject="${status_email_subject}, ${summary} ${raised_for}, on ${host}"
+
+elif { [ "${old_status}" = "WARNING" ] && [ "${status}" = "CRITICAL" ]; }; then
+  severity="Escalated to ${status}"
+  if [ ${non_clear_duration} -gt ${duration} ]; then
+    raised_for="(alarm is raised for ${non_clear_duration_txt})"
+  fi
+  rich_status_raised_for="Escalated to critical, ${raised_for}"
+
+elif { [ "${old_status}" = "CRITICAL" ] && [ "${status}" = "WARNING" ]; }; then
+  severity="Demoted to ${status}"
+  if [ ${non_clear_duration} -gt ${duration} ]; then
+    raised_for="(alarm is raised for ${non_clear_duration_txt})"
+  fi
+  rich_status_raised_for="Demoted to warning, ${raised_for}"
+
+else
+  raised_for=
+fi
+
+# prepare HTML versions of elements
+info_html=
+[ -n "${info}" ] && info_html=" <small><br/>${info}</small>"
+
+raised_for_html=
+[ -n "${raised_for}" ] && raised_for_html="<br/><small>${raised_for}</small>"
+
+# -----------------------------------------------------------------------------
+# send the slack notification
+
+# slack aggregates posts from the same username
+# so we use "${host} ${status}" as the bot username, to make them diff
+
+send_slack "${SLACK_WEBHOOK_URL}" "${to_slack}"
+SENT_SLACK=$?
+
+# -----------------------------------------------------------------------------
+# send the Microsoft Teams notification
+
+# Microsoft teams aggregates posts from the same username
+# so we use "${host} ${status}" as the bot username, to make them diff
+
+send_msteams "${MSTEAMS_WEBHOOK_URL}" "${to_msteams}"
+SENT_MSTEAMS=$?
+
+# -----------------------------------------------------------------------------
+# send the rocketchat notification
+
+# rocketchat aggregates posts from the same username
+# so we use "${host} ${status}" as the bot username, to make them diff
+
+send_rocketchat "${ROCKETCHAT_WEBHOOK_URL}" "${to_rocketchat}"
+SENT_ROCKETCHAT=$?
+
+# -----------------------------------------------------------------------------
+# send the alerta notification
+
+# alerta aggregates posts from the same username
+# so we use "${host} ${status}" as the bot username, to make them diff
+
+send_alerta "${ALERTA_WEBHOOK_URL}" "${to_alerta}"
+SENT_ALERTA=$?
+
+# -----------------------------------------------------------------------------
+# send the flock notification
+
+# flock aggregates posts from the same username
+# so we use "${host} ${status}" as the bot username, to make them diff
+
+send_flock "${FLOCK_WEBHOOK_URL}" "${to_flock}"
+SENT_FLOCK=$?
+
+# -----------------------------------------------------------------------------
+# send the discord notification
+
+# discord aggregates posts from the same username
+# so we use "${host} ${status}" as the bot username, to make them diff
+
+send_discord "${DISCORD_WEBHOOK_URL}" "${to_discord}"
+SENT_DISCORD=$?
+
+# -----------------------------------------------------------------------------
+# send the pushover notification
+
+send_pushover "${PUSHOVER_APP_TOKEN}" "${to_pushover}" "${when}" "${goto_url}" "${status}" "${host} ${status_message} - ${name//_/ } - ${chart}" "
+<font color=\"${color}\"><b>${alarm}</b></font>${info_html}<br/>&nbsp;
+<small><b>${chart}</b><br/>Chart<br/>&nbsp;</small>
+<small><b>${severity}</b><br/>Severity<br/>&nbsp;</small>
+<small><b>${date}${raised_for_html}</b><br/>Time<br/>&nbsp;</small>
+<a href=\"${goto_url}\">View Netdata</a><br/>&nbsp;
+<small><small>The source of this alarm is line ${src}</small></small>
+"
+
+SENT_PUSHOVER=$?
+
+# -----------------------------------------------------------------------------
+# send the pushbullet notification
+
+send_pushbullet "${PUSHBULLET_ACCESS_TOKEN}" "${PUSHBULLET_SOURCE_DEVICE}" "${to_pushbullet}" "${goto_url}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}\\n
+Severity: ${severity}\\n
+Chart: ${chart}\\n
+${date}\\n
+The source of this alarm is line ${src}"
+
+SENT_PUSHBULLET=$?
+
+# -----------------------------------------------------------------------------
+# send the twilio SMS
+
+send_twilio "${TWILIO_ACCOUNT_SID}" "${TWILIO_ACCOUNT_TOKEN}" "${TWILIO_NUMBER}" "${to_twilio}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}
+Severity: ${severity}
+Chart: ${chart}
+${info}"
+
+SENT_TWILIO=$?
+
+# -----------------------------------------------------------------------------
+# send the messagebird SMS
+
+send_messagebird "${MESSAGEBIRD_ACCESS_KEY}" "${MESSAGEBIRD_NUMBER}" "${to_messagebird}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}
+Severity: ${severity}
+Chart: ${chart}
+${info}"
+
+SENT_MESSAGEBIRD=$?
+
+# -----------------------------------------------------------------------------
+# send the kavenegar SMS
+
+send_kavenegar "${KAVENEGAR_API_KEY}" "${KAVENEGAR_SENDER}" "${to_kavenegar}" "${host} ${status_message} - ${name//_/ } - ${chart}" "${alarm}
+Severity: ${severity}
+Chart: ${chart}
+${info}"
+
+SENT_KAVENEGAR=$?
+
+# -----------------------------------------------------------------------------
+# send the telegram.org message
+
+# https://core.telegram.org/bots/api#formatting-options
+send_telegram "${TELEGRAM_BOT_TOKEN}" "${to_telegram}" "${host} ${status_message} - <b>${name//_/ }</b>
+${chart}
+<a href=\"${goto_url}\">${alarm}</a>
+<i>${info}</i>"
+
+SENT_TELEGRAM=$?
+
+# -----------------------------------------------------------------------------
+# send the kafka message
+
+send_kafka
+SENT_KAFKA=$?
+
+# -----------------------------------------------------------------------------
+# send the pagerduty.com message
+
+send_pd "${to_pd}"
+SENT_PD=$?
+
+# -----------------------------------------------------------------------------
+# send the fleep message
+
+send_fleep "${to_fleep}"
+SENT_FLEEP=$?
+
+# -----------------------------------------------------------------------------
+# send the Prowl message
+
+send_prowl "${to_prowl}"
+SENT_PROWL=$?
+
+# -----------------------------------------------------------------------------
+# send the irc message
+
+send_irc "${IRC_NICKNAME}" "${IRC_REALNAME}" "${to_irc}" "${IRC_NETWORK}" "${IRC_PORT}" "${host}" "${host} ${status_message} - ${name//_/ } - ${chart} ----- ${alarm}
+Severity: ${severity}
+Chart: ${chart}
+${info}"
+
+SENT_IRC=$?
+
+# -----------------------------------------------------------------------------
+# send the SMS message with smstools3
+
+send_sms "${to_sms}"
+
+SENT_SMS=$?
+
+# -----------------------------------------------------------------------------
+# send the custom message
+
+send_custom() {
+  # is it enabled?
+  [ "${SEND_CUSTOM}" != "YES" ] && return 1
+
+  # do we have any sender?
+  [ -z "${1}" ] && return 1
+
+  # call the custom_sender function
+  custom_sender "${@}"
+}
+
+send_custom "${to_custom}"
+SENT_CUSTOM=$?
+
+# -----------------------------------------------------------------------------
+# send hipchat message
+
+send_hipchat "${HIPCHAT_AUTH_TOKEN}" "${to_hipchat}" " \
+${host} ${status_message}<br/> \
+<b>${alarm}</b> ${info_html}<br/> \
+<b>${chart}</b><br/> \
+<b>${date}${raised_for_html}</b><br/> \
+<a href=\\\"${goto_url}\\\">View netdata dashboard</a> \
+(source of alarm ${src}) \
+"
+
+SENT_HIPCHAT=$?
+
+# -----------------------------------------------------------------------------
+# send the Amazon SNS message
+
+send_awssns "${to_awssns}"
+
+SENT_AWSSNS=$?
+
+# -----------------------------------------------------------------------------
+#  send the Matrix message
+send_matrix "${MATRIX_HOMESERVER}" "${to_matrix}"
+
+SENT_MATRIX=$?
+
+
+# -----------------------------------------------------------------------------
+# send the syslog message
+
+send_syslog "${to_syslog}"
+
+SENT_SYSLOG=$?
+
+# -----------------------------------------------------------------------------
+# send the email
+
+IFS='' read -r -d '' email_plaintext_part <<EOF
+Content-Type: text/plain; encoding=${EMAIL_CHARSET}
+Content-Disposition: inline
+Content-Transfer-Encoding: 8bit
+
+${host} ${status_message}
+
+${alarm} ${info}
+${raised_for}
+
+Chart   : ${chart}
+Severity: ${severity}
+URL     : ${goto_url}
+Source  : ${src}
+Date    : ${date}
+Notification generated on ${host}
+
+Evaluated Expression :  ${calc_expression}
+Expression Variables :  ${calc_param_values}
+
+The host has ${total_warnings} WARNING and ${total_critical} CRITICAL alarm(s) raised.
+EOF
+
+if [[ "${EMAIL_PLAINTEXT_ONLY}" == "YES" ]]; then
+
+send_email <<EOF
+To: ${to_email}
+Subject: ${host} ${status_message} - ${name//_/ } - ${chart}
+MIME-Version: 1.0
+Content-Type: multipart/alternative; boundary="multipart-boundary"
+${email_thread_headers}
+X-Netdata-Severity: ${status,,}
+X-Netdata-Alert-Name: $name
+X-Netdata-Chart: $chart
+X-Netdata-Classification: $classification
+X-Netdata-Host: $host
+X-Netdata-Role: $roles
+
+This is a MIME-encoded multipart message
+
+--multipart-boundary
+${email_plaintext_part}
+--multipart-boundary--
+EOF
+
+else
+
+now=$(date "+%s")
+
+if [ -n "$total_warn_alarms" ]; then
+   while read -d, -r pair; do
+       IFS='=' read -r key val <<<"$pair"
+
+       date_w=$(date --date=@${val} "${date_format}" 2>/dev/null)
+       [ -z "${date_w}" ] && date_w=$(date "${date_format}" 2>/dev/null)
+       [ -z "${date_w}" ] && date_w=$(date --date=@${val} 2>/dev/null)
+       [ -z "${date_w}" ] && date_w=$(date 2>/dev/null)
+
+       elapsed=$((now - val))
+
+       duration4human ${elapsed} >/dev/null
+       elapsed_txt="${REPLY}"
+
+       WARN_ALARMS+="
+       <div class=\"set-font\" style=\"font-family: 'IBM Plex Sans', sans-serif; background: #FFFFFF; background-color: #FFFFFF; margin: 0px auto; max-width: 600px;\">
+            <table align=\"center\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" style=\"background:#FFFFFF;background-color:#FFFFFF;width:100%;\">
+              <tbody>
+              <tr>
+                <td style=\"border-top:8px solid #F7F8F8;direction:ltr;font-size:0px;padding:20px 0;text-align:center;\">
+                  <!--[if mso | IE]><table role=\"presentation\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr><td class=\"\" style=\"vertical-align:top;width:300px;\" ><![endif]-->
+                  <div class=\"mj-column-per-50 mj-outlook-group-fix\" style=\"font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:50%;\">
+                    <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" style=\"vertical-align:top;\" width=\"100%\">
+                      <tbody>
+                      <tr>
+                        <td align=\"left\" style=\"font-size:0px;padding:10px 25px;word-break:break-word;\">
+                          <div style=\"font-family:Open Sans, sans-serif;font-size:14px;font-weight:600;line-height:1;text-align:left;color:#35414A;\">${key}</div>
+                        </td>
+                      </tr>
+                      <tr>
+                        <td align=\"left\" style=\"font-size:0px;padding:10px 25px;padding-top:2px;word-break:break-word;\">
+                          <div style=\"font-family:Open Sans, sans-serif;font-size:12px;line-height:1;text-align:left;color:#35414A;\">${date_w}</div>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td><td class=\"\" style=\"vertical-align:top;width:300px;\" ><![endif]-->
+                  <div class=\"mj-column-per-50 mj-outlook-group-fix\" style=\"font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:50%;\">
+                    <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" width=\"100%\">
+                      <tbody>
+                      <tr>
+                        <td style=\"vertical-align:top;padding-top:13px;\">
+                          <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" style width=\"100%\">
+                            <tbody>
+                            <tr>
+                              <td align=\"right\" style=\"font-size:0px;padding:10px 25px;word-break:break-word;\">
+                                <div style=\"font-family:Open Sans, sans-serif;font-size:13px;line-height:1;text-align:right;color:#555555;\"><span style=\"background-color:#FFF8E1; border: 1px solid #FFC300; border-radius:36px; padding: 2px 12px; margin-top: 20px; white-space: nowrap\">
+              Warning for ${elapsed_txt}
+           </span></div>
+                              </td>
+                            </tr>
+                            </tbody>
+                          </table>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+       "
+
+   done <<<"$total_warn_alarms,"
+fi
+
+if [ -n "$total_crit_alarms" ]; then
+   while read -d, -r pair; do
+       IFS='=' read -r key val <<<"$pair"
+
+       date_c=$(date --date=@${val} "${date_format}" 2>/dev/null)
+       [ -z "${date_c}" ] && date_c=$(date "${date_format}" 2>/dev/null)
+       [ -z "${date_c}" ] && date_c=$(date --date=@${val} 2>/dev/null)
+       [ -z "${date_c}" ] && date_c=$(date 2>/dev/null)
+
+       elapsed=$((now - val))
+
+       duration4human ${elapsed} >/dev/null
+       elapsed_txt="${REPLY}"
+
+       CRIT_ALARMS+="
+       <div class=\"set-font\" style=\"font-family: 'IBM Plex Sans', sans-serif; background: #FFFFFF; background-color: #FFFFFF; margin: 0px auto; max-width: 600px;\">
+            <table align=\"center\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" style=\"background:#FFFFFF;background-color:#FFFFFF;width:100%;\">
+              <tbody>
+              <tr>
+                <td style=\"border-top:8px solid #F7F8F8;direction:ltr;font-size:0px;padding:20px 0;text-align:center;\">
+                  <!--[if mso | IE]><table role=\"presentation\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr><td class=\"\" style=\"vertical-align:top;width:300px;\" ><![endif]-->
+                  <div class=\"mj-column-per-50 mj-outlook-group-fix\" style=\"font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:50%;\">
+                    <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" style=\"vertical-align:top;\" width=\"100%\">
+                      <tbody>
+                      <tr>
+                        <td align=\"left\" style=\"font-size:0px;padding:10px 25px;word-break:break-word;\">
+                          <div style=\"font-family:Open Sans, sans-serif;font-size:14px;font-weight:600;line-height:1;text-align:left;color:#35414A;\">${key}</div>
+                        </td>
+                      </tr>
+                      <tr>
+                        <td align=\"left\" style=\"font-size:0px;padding:10px 25px;padding-top:2px;word-break:break-word;\">
+                          <div style=\"font-family:Open Sans, sans-serif;font-size:12px;line-height:1;text-align:left;color:#35414A;\">${date_c}</div>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td><td class=\"\" style=\"vertical-align:top;width:300px;\" ><![endif]-->
+                  <div class=\"mj-column-per-50 mj-outlook-group-fix\" style=\"font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:50%;\">
+                    <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" width=\"100%\">
+                      <tbody>
+                      <tr>
+                        <td style=\"vertical-align:top;padding-top:13px;\">
+                          <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" role=\"presentation\" style width=\"100%\">
+                            <tbody>
+                            <tr>
+                              <td align=\"right\" style=\"font-size:0px;padding:10px 25px;word-break:break-word;\">
+                                <div style=\"font-family:Open Sans, sans-serif;font-size:13px;line-height:1;text-align:right;color:#35414A;\"><span style=\"background-color:#FFEBEF; border: 1px solid #FF4136; border-radius:36px; padding: 2px 12px; margin-top: 20px; white-space: nowrap\">
+              Critical for ${elapsed_txt}
+           </span></div>
+                              </td>
+                            </tr>
+                            </tbody>
+                          </table>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+       "
+
+   done <<<"$total_crit_alarms,"
+fi
+
+if (( total_warnings + total_critical > 15 )); then
+    EXTRA_ALARMS_LIST_TEXT="(Showing latest 15 alerts)"
+fi
+
+if [ -n "$edit_command_line" ]; then
+    IFS='=' read -r edit_command line s_host <<<"$edit_command_line"
+fi
+
+IFS='' read -r -d '' email_html_part <<EOF
+Content-Type: text/html; encoding=${EMAIL_CHARSET}
+Content-Disposition: inline
+Content-Transfer-Encoding: 8bit
+
+<!doctype html>
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office">
+<head>
+  <title>
+  </title>
+  <!--[if !mso]><!-->
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <!--<![endif]-->
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <style type="text/css">
+      #outlook a { padding:0; }
+      body { margin:0;padding:0;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%; }
+      table, td { border-collapse:collapse;mso-table-lspace:0pt;mso-table-rspace:0pt; }
+      img { border:0;height:auto;line-height:100%; outline:none;text-decoration:none;-ms-interpolation-mode:bicubic; }
+      p { display:block;margin:13px 0; }
+  </style>
+  <!--[if mso]>
+  <xml>
+    <o:OfficeDocumentSettings>
+      <o:AllowPNG/>
+      <o:PixelsPerInch>96</o:PixelsPerInch>
+    </o:OfficeDocumentSettings>
+  </xml>
+  <![endif]-->
+  <!--[if lte mso 11]>
+  <style type="text/css">
+    .mj-outlook-group-fix { width:100% !important; }
+  </style>
+  <![endif]-->
+  <!--[if !mso]><!-->
+  <link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700&display=swap" rel="stylesheet" type="text/css">
+  <link href="https://fonts.googleapis.com/css?family=Ubuntu:300,400,500,700" rel="stylesheet" type="text/css">
+  <style type="text/css">
+      @import url(https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;500;600;700&display=swap);
+      @import url(https://fonts.googleapis.com/css?family=Ubuntu:300,400,500,700);
+  </style>
+  <!--<![endif]-->
+  <style type="text/css">
+      @media only screen and (min-width:100px) {
+          .mj-column-px-130 { width:130px !important; max-width: 130px; }
+          .mj-column-per-50 { width:50% !important; max-width: 50%; }
+          .mj-column-per-70 { width:70% !important; max-width: 70%; }
+          .mj-column-per-30 { width:30% !important; max-width: 30%; }
+          .mj-column-per-100 { width:100% !important; max-width: 100%; }
+          .mj-column-px-66 { width:66px !important; max-width: 66px; }
+          .mj-column-px-400 { width:400px !important; max-width: 400px; }
+      }
+  </style>
+  <style type="text/css">
+      @media only screen and (max-width:100px) {
+          table.mj-full-width-mobile { width: 100% !important; }
+          td.mj-full-width-mobile { width: auto !important; }
+      }
+  </style>
+</head>
+<body style="word-spacing:normal;">
+<div class="svgbg" style="background-image: url('https://staging.netdata.cloud/static/email/img/isotype_600.png'); background-repeat: no-repeat; background-position: top center; background-size: 600px 192px;">
+  <!--[if mso | IE]><table align="center" border="0" cellpadding="0" cellspacing="0" class="" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+  <div style="margin:0px auto;max-width:600px;">
+    <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+      <tbody>
+      <tr>
+        <td style="direction:ltr;font-size:0px;padding:20px 0;padding-bottom:50px;padding-left:0;text-align:left;">
+          <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:130px;" ><![endif]-->
+          <div class="mj-column-px-130 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:130px;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+              <tbody>
+              <tr>
+                <td align="center" style="font-size:0px;padding:10px 25px;padding-right:0;padding-left:0;word-break:break-word;">
+                  <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="border-collapse:collapse;border-spacing:0px;">
+                    <tbody>
+                    <tr>
+                      <td style="width:130px;">
+                        <img alt="Netdata Logo" height="auto" src="https://app.netdata.cloud/static/email/img/full_logo.png" style="border:0;display:block;outline:none;text-decoration:none;height:auto;width:100%;font-size:13px;" width="130">
+                      </td>
+                    </tr>
+                    </tbody>
+                  </table>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td><td class="" style="vertical-align:top;width:300px;" ><![endif]-->
+          <div class="mj-column-per-50 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:50%;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" width="100%">
+              <tbody>
+              <tr>
+                <td style="vertical-align:top;padding-top:4px;">
+                  <table border="0" cellpadding="0" cellspacing="0" role="presentation" style width="100%">
+                    <tbody>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-left:10px;word-break:break-word;">
+                        <div style="font-family:Open Sans, sans-serif;font-size:16px;line-height:1;text-align:left;color:#35414A;">Notification</div>
+                      </td>
+                    </tr>
+                    </tbody>
+                  </table>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table><![endif]-->
+        </td>
+      </tr>
+      </tbody>
+    </table>
+  </div>
+  <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="no-collapse-outlook" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+  <div class="no-collapse" style="border-collapse: initial; margin: 0px auto; border-radius: 4px; max-width: 600px;">
+    <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;border-radius:4px;">
+      <tbody>
+      <tr>
+        <td style="border:1px solid ${border_color};direction:ltr;font-size:0px;padding:20px 0;text-align:center;">
+          <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="set-font-outlook" width="600px" ><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:598px;" width="598" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+          <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 598px;">
+            <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+              <tbody>
+              <tr>
+                <td style="direction:ltr;font-size:0px;padding:20px 0;padding-bottom:0;padding-top:0;text-align:center;">
+                  <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:418.6px;" ><![endif]-->
+                  <div class="mj-column-per-70 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:70%;">
+                    <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+                      <tbody>
+                      <tr>
+                        <td align="left" style="font-size:0px;padding:10px 25px;padding-top:15px;word-break:break-word;">
+                          <div style="font-family:Open Sans, sans-serif;font-size:20px;font-weight:700;line-height:1;text-align:left;color:#35414A;">${summary}</div>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td><td class="" style="vertical-align:top;width:179.4px;" ><![endif]-->
+                  <div class="mj-column-per-30 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:30%;">
+                    <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+                      <tbody>
+                      <tr>
+                        <td align="right" style="font-size:0px;padding:10px 25px;padding-right:25px;word-break:break-word;">
+                          <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="border-collapse:collapse;border-spacing:0px;">
+                            <tbody>
+                            <tr>
+                              <td style="width:100px;">
+                                <img height="auto" src="${alarm_badge}" style="border:0;display:block;outline:none;text-decoration:none;height:auto;width:100%;font-size:13px;" width="100"/>
+                              </td>
+                            </tr>
+                            </tbody>
+                          </table>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table></td></tr><tr><td class="set-font-outlook" width="600px" ><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:598px;" width="598" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+          <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 598px;">
+            <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+              <tbody>
+              <tr>
+                <td style="direction:ltr;font-size:0px;padding:0;text-align:center;">
+                  <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:598px;" ><![endif]-->
+                  <div class="mj-column-per-100 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+                    <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+                      <tbody>
+                      <tr>
+                        <td align="left" style="font-size:0px;padding:10px 25px;padding-top:0;word-break:break-word;">
+                          <div style="font-family:IBM Plex Sans, sans-serif;font-size:16px;line-height:1;text-align:left;color:#35414A;">on ${host}</div>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table></td></tr><tr><td class="set-font-outlook" width="600px" ><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:598px;" width="598" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+          <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 598px;">
+            <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+              <tbody>
+              <tr>
+                <td style="direction:ltr;font-size:0px;padding:20px 0;text-align:center;">
+                  <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:598px;" ><![endif]-->
+                  <div class="mj-column-per-100 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+                    <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+                      <tbody>
+                      <tr>
+                        <td align="left" style="font-size:0px;padding:10px 25px;padding-top:0;word-break:break-word;">
+                          <div style="font-family:Open Sans, sans-serif;font-size:26px;font-weight:700;line-height:1;text-align:left;color:#35414A;"><span style="color: ${text_color}; font-size:26px; background: ${background_color}; padding:4px 24px; border-radius: 36px">${value_string}
+            </span></div>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table></td></tr><tr><td class="set-font-outlook" width="600px" ><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:598px;" width="598" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+          <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 598px;">
+            <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+              <tbody>
+              <tr>
+                <td style="direction:ltr;font-size:0px;padding:20px 0;padding-bottom:0;padding-top:0;text-align:center;">
+                  <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:598px;" ><![endif]-->
+                  <div class="mj-column-per-100 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+                    <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+                      <tbody>
+                      <tr>
+                        <td align="left" style="font-size:0px;padding:10px 25px;padding-top:0;word-break:break-word;">
+                          <div style="font-family:Open Sans, sans-serif;font-size:16px;line-height:21px;text-align:left;color:#35414A;">Details: ${info}</div>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table></td></tr><tr><td class="set-font-outlook" width="600px" ><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:598px;" width="598" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+          <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 598px;">
+            <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+              <tbody>
+              <tr>
+                <td style="direction:ltr;font-size:0px;padding:20px 0;padding-bottom:0;padding-top:0;text-align:center;">
+                  <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:598px;" ><![endif]-->
+                  <div class="mj-column-per-100 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+                    <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+                      <tbody>
+                      <tr>
+                        <td align="center" vertical-align="middle" style="font-size:0px;padding:10px 25px;word-break:break-word;">
+                          <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="border-collapse:separate;width:100%;line-height:100%;">
+                            <tr>
+                              <td
+                                align="center" bgcolor="${border_color}" role="presentation" style="border:none;border-radius:3px;cursor:auto;height:44px;background:${border_color};" valign="middle">
+                                <p style="display:block;background:${border_color};color:#ffffff;font-size:13px;font-weight:600;line-height:44px;margin:0;text-decoration:none;text-transform:none;mso-padding-alt:0px;border-radius:3px;">
+                                  <a href="${goto_url}" style="color: ${action_text_color}; text-decoration: none; width: 100%; display: inline-block">GO TO CHART</a>
+                                </p>
+                              </td>
+                            </tr>
+                          </table>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table></td></tr></table><![endif]-->
+        </td>
+      </tr>
+      </tbody>
+    </table>
+  </div>
+  <!--[if mso | IE]></td></tr></table><![endif]-->
+  <div style="height:32px;line-height:32px;">&#8202;</div>
+  <!--[if mso | IE]><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+  <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; background: ${background_color}; background-color: ${background_color}; margin: 0px auto; border-radius: 4px; max-width: 600px;">
+    <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="background:${background_color};background-color:${background_color};width:100%;border-radius:4px;">
+      <tbody>
+      <tr>
+        <td style="direction:ltr;font-size:0px;padding:20px 0;text-align:center;">
+          <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:600px;" ><![endif]-->
+          <div class="mj-column-per-100 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+              <tbody>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-bottom:6px;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:18px;line-height:1;text-align:left;color:#35414A;">Alert:
+                    <span style="font-weight:700; font-size:20px">${name}</span></div>
+                </td>
+              </tr>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-top:0;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:18px;line-height:1;text-align:left;color:#35414A;">Chart:
+                    <span style="font-weight:700; font-size:20px">${chart}</span></div>
+                </td>
+              </tr>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-top:4px;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:14px;line-height:1;text-align:left;color:#35414A;">${rich_status_raised_for}</div>
+                </td>
+              </tr>
+              <tr>
+                <td align="center" style="font-size:0px;padding:10px 25px;word-break:break-word;">
+                  <p style="border-top:solid 1px lightgrey;font-size:1px;margin:0px auto;width:100%;">
+                  </p>
+                  <!--[if mso | IE]><table align="center" border="0" cellpadding="0" cellspacing="0" style="border-top:solid 1px lightgrey;font-size:1px;margin:0px auto;width:550px;" role="presentation" width="550px" ><tr><td style="height:0;line-height:0;"> &nbsp;
+            </td></tr></table><![endif]-->
+                </td>
+              </tr>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-bottom:6px;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:16px;line-height:1;text-align:left;color:#35414A;">On
+                    <span style="font-weight:600">${date}</span></div>
+                </td>
+              </tr>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-top:0;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:16px;line-height:1;text-align:left;color:#35414A;">By:
+                    <span style="font-weight:600">${host}</span></div>
+                </td>
+              </tr>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-top:4px;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:14px;line-height:1;text-align:left;color:#35414A;">Global time:
+                    <span style="font-weight:600">${date_utc}</span></div>
+                </td>
+              </tr>
+              <tr>
+                <td align="center" style="font-size:0px;padding:10px 25px;word-break:break-word;">
+                  <p style="border-top:solid 1px lightgrey;font-size:1px;margin:0px auto;width:100%;">
+                  </p>
+                  <!--[if mso | IE]><table align="center" border="0" cellpadding="0" cellspacing="0" style="border-top:solid 1px lightgrey;font-size:1px;margin:0px auto;width:550px;" role="presentation" width="550px" ><tr><td style="height:0;line-height:0;"> &nbsp;
+            </td></tr></table><![endif]-->
+                </td>
+              </tr>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-bottom:6px;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:16px;line-height:1;text-align:left;color:#35414A;">Classification:
+                    <span style="font-weight:600">${classification}</span></div>
+                </td>
+              </tr>
+              <tr>
+                <td align="left" style="font-size:0px;padding:10px 25px;padding-top:0;word-break:break-word;">
+                  <div style="font-family:Open Sans, sans-serif;font-size:16px;line-height:1;text-align:left;color:#35414A;">Role:
+                    <span style="font-weight:600">${roles}</span></div>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table><![endif]-->
+        </td>
+      </tr>
+      </tbody>
+    </table>
+  </div>
+  <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+  <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 600px;">
+    <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+      <tbody>
+      <tr>
+        <td style="direction:ltr;font-size:0px;padding:20px 0;padding-left:25px;text-align:left;">
+          <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:66px;" ><![endif]-->
+          <div class="mj-column-px-66 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:66px;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" width="100%">
+              <tbody>
+              <tr>
+                <td style="vertical-align:top;padding:0;">
+                  <table border="0" cellpadding="0" cellspacing="0" role="presentation" style width="100%">
+                    <tbody>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-right:0;padding-left:0;word-break:break-word;">
+                        <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="border-collapse:collapse;border-spacing:0px;">
+                          <tbody>
+                          <tr>
+                            <td style="width:48px;">
+                              <img height="auto" src="https://app.netdata.cloud/static/email/img/community_icon.png" style="border:0;display:block;outline:none;text-decoration:none;height:auto;width:100%;font-size:13px;" width="48">
+                            </td>
+                          </tr>
+                          </tbody>
+                        </table>
+                      </td>
+                    </tr>
+                    </tbody>
+                  </table>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td><td align="left" class="" style="vertical-align:top;width:400px;" ><![endif]-->
+          <div class="mj-column-px-400 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:400px;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" width="100%">
+              <tbody>
+              <tr>
+                <td style="vertical-align:top;padding-left:0;">
+                  <table border="0" cellpadding="0" cellspacing="0" role="presentation" style width="100%">
+                    <tbody>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-left:0;word-break:break-word;">
+                        <div style="font-family:Open Sans, sans-serif;font-size:16px;font-weight:700;line-height:1;text-align:left;color:#35414A;">Want to know more about this alert?</div>
+                      </td>
+                    </tr>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-left:0;word-break:break-word;">
+                        <div style="font-family:Open Sans, sans-serif;font-size:14px;line-height:1.3;text-align:left;color:#35414A;">Join the troubleshooting discussion for this alert on our <a href="https://community.netdata.cloud/t/${name//[._]/-}" class="link" style="color: #00AB44; text-decoration: none;">community forums</a>.</div>
+                      </td>
+                    </tr>
+                    </tbody>
+                  </table>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table><![endif]-->
+        </td>
+      </tr>
+      </tbody>
+    </table>
+  </div>
+  <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+  <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 600px;">
+    <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+      <tbody>
+      <tr>
+        <td style="direction:ltr;font-size:0px;padding:20px 0;padding-left:25px;text-align:left;">
+          <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:66px;" ><![endif]-->
+          <div class="mj-column-px-66 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:66px;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" width="100%">
+              <tbody>
+              <tr>
+                <td style="vertical-align:top;padding:0;">
+                  <table border="0" cellpadding="0" cellspacing="0" role="presentation" style width="100%">
+                    <tbody>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-right:0;padding-left:0;word-break:break-word;">
+                        <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="border-collapse:collapse;border-spacing:0px;">
+                          <tbody>
+                          <tr>
+                            <td style="width:48px;">
+                              <img height="auto" src="https://app.netdata.cloud/static/email/img/configure_icon.png" style="border:0;display:block;outline:none;text-decoration:none;height:auto;width:100%;font-size:13px;" width="48">
+                            </td>
+                          </tr>
+                          </tbody>
+                        </table>
+                      </td>
+                    </tr>
+                    </tbody>
+                  </table>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td><td align="left" class="" style="vertical-align:top;width:400px;" ><![endif]-->
+          <div class="mj-column-px-400 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:400px;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" width="100%">
+              <tbody>
+              <tr>
+                <td style="vertical-align:top;padding-left:0;">
+                  <table border="0" cellpadding="0" cellspacing="0" role="presentation" style width="100%">
+                    <tbody>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-left:0;word-break:break-word;">
+                        <div style="font-family:Open Sans, sans-serif;font-size:16px;font-weight:700;line-height:1;text-align:left;color:#35414A;">Need to configure this alert?</div>
+                      </td>
+                    </tr>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-left:0;word-break:break-word;">
+                        <div style="font-family:Open Sans, sans-serif;font-size:14px;line-height:1.3;text-align:left;color:#35414A;"><span style="color: #00AB44"><a href="https://learn.netdata.cloud/docs/agent/health/notifications#:~:text=To%20edit%20it%20on%20your,have%20one%20or%20more%20destinations" class="link" style="color: #00AB44; text-decoration: none;">Edit</a></span> this alert's configuration file by logging into $s_host and running the following command:</div>
+                      </td>
+                    </tr>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-top:8px;padding-left:0;word-break:break-word;">
+                        <div style="font-family:Open Sans, sans-serif;font-size:12px;line-height:1.3;text-align:left;color:#35414A;">${edit_command} <br>
+                          <br>The alarm to edit is at line ${line}</div>
+                      </td>
+                    </tr>
+                    </tbody>
+                  </table>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          <!--[if mso | IE]></td></tr></table><![endif]-->
+        </td>
+      </tr>
+      </tbody>
+    </table>
+  </div>
+  <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="history-wrapper-outlook" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+  <div class="history-wrapper" style="background: #F7F8F8; background-color: #F7F8F8; margin: 0px auto; max-width: 100%;">
+    <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="background:#F7F8F8;background-color:#F7F8F8;width:100%;">
+      <tbody>
+      <tr>
+        <td style="direction:ltr;font-size:0px;padding:0;padding-bottom:24px;text-align:center;">
+          <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="set-font-outlook" width="600px" ><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+          <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 600px;">
+            <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+              <tbody>
+              <tr>
+                <td style="direction:ltr;font-size:0px;padding:20px 0;padding-bottom:12px;text-align:center;">
+                  <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:600px;" ><![endif]-->
+                  <div class="mj-column-per-100 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+                    <table border="0" cellpadding="0" cellspacing="0" role="presentation" style="vertical-align:top;" width="100%">
+                      <tbody>
+                      <tr>
+                        <td align="left" style="font-size:0px;padding:10px 25px;word-break:break-word;">
+                          <div style="font-family:Open Sans, sans-serif;font-size:16px;line-height:1;text-align:center;color:#35414A;">The node has
+                            <span style="font-weight:600">${total_warnings} warning</span>
+                            and
+                            <span style="font-weight:600">${total_critical} critical</span>
+                            additional active alert(s)</div>
+                        </td>
+                        </tr>
+                        <td align="left" style="font-size:0px;padding:10px 25px;word-break:break-word;">
+                          <div style="font-family:Open Sans, sans-serif;font-size:12px;line-height:1;text-align:center;color:#35414A;">${EXTRA_ALARMS_LIST_TEXT}</div>
+                        </td>
+                      </tr>
+                      </tbody>
+                    </table>
+                  </div>
+                  <!--[if mso | IE]></td></tr></table><![endif]-->
+                </td>
+              </tr>
+              </tbody>
+            </table>
+          </div>
+          ${CRIT_ALARMS}
+          ${WARN_ALARMS}
+          <!--[if mso | IE]></td></tr></table></td></tr></table><![endif]-->
+        </td>
+      </tr>
+      </tbody>
+    </table>
+  </div>
+  <!--[if mso | IE]></td></tr></table><table align="center" border="0" cellpadding="0" cellspacing="0" class="set-font-outlook" style="width:600px;" width="600" ><tr><td style="line-height:0px;font-size:0px;mso-line-height-rule:exactly;"><![endif]-->
+  <div class="set-font" style="font-family: 'IBM Plex Sans', sans-serif; margin: 0px auto; max-width: 600px;">
+    <table align="center" border="0" cellpadding="0" cellspacing="0" role="presentation" style="width:100%;">
+      <tbody>
+      <tr>
+        <td style="direction:ltr;font-size:0px;padding:20px 0;text-align:center;">
+          <!--[if mso | IE]><table role="presentation" border="0" cellpadding="0" cellspacing="0"><tr><td class="" style="vertical-align:top;width:600px;" ><![endif]-->
+          <div class="mj-column-per-100 mj-outlook-group-fix" style="font-size:0px;text-align:left;direction:ltr;display:inline-block;vertical-align:top;width:100%;">
+            <table border="0" cellpadding="0" cellspacing="0" role="presentation" width="100%">
+              <tbody>
+              <tr>
+                <td style="vertical-align:top;padding-top:44px;padding-bottom:12px;">
+                  <table border="0" cellpadding="0" cellspacing="0" role="presentation" style width="100%">
+                    <tbody>
+                    <tr>
+                      <td align="left" style="font-size:0px;padding:10px 25px;padding-top:0;padding-bottom:0;word-break:break-word;">
+                        <div style="font-family:Open Sans, sans-serif;font-size:13px;line-height:1;text-align:center;color:#35414A;">© Netdata $(date +'%Y') - The real-time performance and health monitoring</div>
+                      </td>
+                    </tr>
+                    </tbody>
+                  </table>
+                </td>
+              </tr>
+              </tbody>
+            </table>
+  </div>
+          <!--[if mso | IE]></td></tr></table><![endif]-->
+        </td>
+      </tr>
+      </tbody>
+    </table>
+  </div>
+  <!--[if mso | IE]></td></tr></table><![endif]-->
+</div>
+</body>
+</html>
+EOF
+
+send_email <<EOF
+To: ${to_email}
+Subject: ${html_email_subject}
+MIME-Version: 1.0
+Content-Type: multipart/alternative; boundary="multipart-boundary"
+${email_thread_headers}
+X-Netdata-Severity: ${status,,}
+X-Netdata-Alert-Name: $name
+X-Netdata-Chart: $chart
+X-Netdata-Classification: $classification
+X-Netdata-Host: $host
+X-Netdata-Role: $roles
+
+This is a MIME-encoded multipart message
+
+--multipart-boundary
+${email_plaintext_part}
+--multipart-boundary
+${email_html_part}
+--multipart-boundary--
+EOF
+
+fi
+
+SENT_EMAIL=$?
+
+# -----------------------------------------------------------------------------
+# send the EVENT to Dynatrace
+send_dynatrace "${host}" "${chart}" "${name}"  "${status}"
+SENT_DYNATRACE=$?
+
+# -----------------------------------------------------------------------------
+# send messages to Opsgenie
+send_opsgenie
+SENT_OPSGENIE=$?
+
+# -----------------------------------------------------------------------------
+# send messages to Gotify
+send_gotify
+SENT_GOTIFY=$?
+
+# -----------------------------------------------------------------------------
+# send messages to ntfy
+send_ntfy "${DEFAULT_RECIPIENT_NTFY}"
+SENT_NTFY=$?
+
+# -----------------------------------------------------------------------------
+# let netdata know
+for state in "${SENT_EMAIL}" \
+  "${SENT_PUSHOVER}" \
+  "${SENT_TELEGRAM}" \
+  "${SENT_SLACK}" \
+  "${SENT_ROCKETCHAT}" \
+  "${SENT_ALERTA}" \
+  "${SENT_FLOCK}" \
+  "${SENT_DISCORD}" \
+  "${SENT_TWILIO}" \
+  "${SENT_HIPCHAT}" \
+  "${SENT_MESSAGEBIRD}" \
+  "${SENT_KAVENEGAR}" \
+  "${SENT_PUSHBULLET}" \
+  "${SENT_KAFKA}" \
+  "${SENT_PD}" \
+  "${SENT_FLEEP}" \
+  "${SENT_PROWL}" \
+  "${SENT_CUSTOM}" \
+  "${SENT_IRC}" \
+  "${SENT_AWSSNS}" \
+  "${SENT_MATRIX}" \
+  "${SENT_SYSLOG}" \
+  "${SENT_SMS}" \
+  "${SENT_MSTEAMS}" \
+  "${SENT_DYNATRACE}" \
+  "${SENT_OPSGENIE}" \
+  "${SENT_GOTIFY}" \
+  "${SENT_NTFY}"; do
+  if [ "${state}" -eq 0 ]; then
+    # we sent something
+    exit 0
+  fi
+done
+# we did not send anything
+exit 1