summaryrefslogtreecommitdiffstats
path: root/debian/debconf/conf.d
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:16:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:16:14 +0000
commit318a1a2246a9f521e5a02313dcc1f6d68a0af7ec (patch)
treee28c79d572e488bf782444e31d81291b99ef1932 /debian/debconf/conf.d
parentAdding upstream version 4.96. (diff)
downloadexim4-318a1a2246a9f521e5a02313dcc1f6d68a0af7ec.tar.xz
exim4-318a1a2246a9f521e5a02313dcc1f6d68a0af7ec.zip
Adding debian version 4.96-15+deb12u4.debian/4.96-15+deb12u4debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--debian/debconf/conf.d/acl/00_exim4-config_header8
-rw-r--r--debian/debconf/conf.d/acl/20_exim4-config_local_deny_exceptions49
-rw-r--r--debian/debconf/conf.d/acl/30_exim4-config_check_mail11
-rw-r--r--debian/debconf/conf.d/acl/30_exim4-config_check_rcpt358
-rw-r--r--debian/debconf/conf.d/acl/40_exim4-config_check_data96
-rw-r--r--debian/debconf/conf.d/auth/00_exim4-config_header8
-rw-r--r--debian/debconf/conf.d/auth/30_exim4-config_examples282
-rw-r--r--debian/debconf/conf.d/main/01_exim4-config_listmacrosdefs81
-rw-r--r--debian/debconf/conf.d/main/02_exim4-config_options233
-rw-r--r--debian/debconf/conf.d/main/03_exim4-config_tlsoptions80
-rw-r--r--debian/debconf/conf.d/main/90_exim4-config_log_selector10
-rw-r--r--debian/debconf/conf.d/retry/00_exim4-config_header7
-rw-r--r--debian/debconf/conf.d/retry/30_exim4-config19
-rw-r--r--debian/debconf/conf.d/rewrite/00_exim4-config_header7
-rw-r--r--debian/debconf/conf.d/rewrite/31_exim4-config_rewriting16
-rw-r--r--debian/debconf/conf.d/router/00_exim4-config_header11
-rw-r--r--debian/debconf/conf.d/router/100_exim4-config_domain_literal18
-rw-r--r--debian/debconf/conf.d/router/150_exim4-config_hubbed_hosts18
-rw-r--r--debian/debconf/conf.d/router/200_exim4-config_primary92
-rw-r--r--debian/debconf/conf.d/router/300_exim4-config_real_local22
-rw-r--r--debian/debconf/conf.d/router/400_exim4-config_system_aliases44
-rw-r--r--debian/debconf/conf.d/router/500_exim4-config_hubuser31
-rw-r--r--debian/debconf/conf.d/router/600_exim4-config_userforward51
-rw-r--r--debian/debconf/conf.d/router/700_exim4-config_procmail15
-rw-r--r--debian/debconf/conf.d/router/800_exim4-config_maildrop14
-rw-r--r--debian/debconf/conf.d/router/850_exim4-config_lowuid29
-rw-r--r--debian/debconf/conf.d/router/900_exim4-config_local_user15
-rw-r--r--debian/debconf/conf.d/router/mmm_mail4root17
-rw-r--r--debian/debconf/conf.d/transport/00_exim4-config_header13
-rw-r--r--debian/debconf/conf.d/transport/10_exim4-config_transport-macros20
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_address_file11
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_address_pipe10
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_address_reply8
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_mail_spool17
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_maildir_home41
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_maildrop_pipe12
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_procmail_pipe10
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_remote_smtp65
-rw-r--r--debian/debconf/conf.d/transport/30_exim4-config_remote_smtp_smarthost58
-rw-r--r--debian/debconf/conf.d/transport/35_exim4-config_address_directory14
40 files changed, 1921 insertions, 0 deletions
diff --git a/debian/debconf/conf.d/acl/00_exim4-config_header b/debian/debconf/conf.d/acl/00_exim4-config_header
new file mode 100644
index 0000000..76b017e
--- /dev/null
+++ b/debian/debconf/conf.d/acl/00_exim4-config_header
@@ -0,0 +1,8 @@
+
+######################################################################
+# ACL CONFIGURATION #
+# Specifies access control lists for incoming SMTP mail #
+######################################################################
+begin acl
+
+
diff --git a/debian/debconf/conf.d/acl/20_exim4-config_local_deny_exceptions b/debian/debconf/conf.d/acl/20_exim4-config_local_deny_exceptions
new file mode 100644
index 0000000..2372795
--- /dev/null
+++ b/debian/debconf/conf.d/acl/20_exim4-config_local_deny_exceptions
@@ -0,0 +1,49 @@
+
+### acl/20_exim4-config_local_deny_exceptions
+#################################
+
+# This is used to determine whitelisted senders and hosts.
+# It checks for CONFDIR/host_local_deny_exceptions and
+# CONFDIR/sender_local_deny_exceptions.
+#
+# It is meant to be used from some other acl entry.
+#
+# See exim4-config_files(5) for details.
+#
+# If the files do not exist, the white list never matches, which is
+# the desired behaviour.
+#
+# The old file names CONFDIR/local_host_whitelist and
+# CONFDIR/local_sender_whitelist will continue to be honored for a
+# transition period. Their use is deprecated.
+
+acl_local_deny_exceptions:
+ accept
+ hosts = ${if exists{CONFDIR/host_local_deny_exceptions}\
+ {CONFDIR/host_local_deny_exceptions}\
+ {}}
+ accept
+ senders = ${if exists{CONFDIR/sender_local_deny_exceptions}\
+ {CONFDIR/sender_local_deny_exceptions}\
+ {}}
+ accept
+ hosts = ${if exists{CONFDIR/local_host_whitelist}\
+ {CONFDIR/local_host_whitelist}\
+ {}}
+ accept
+ senders = ${if exists{CONFDIR/local_sender_whitelist}\
+ {CONFDIR/local_sender_whitelist}\
+ {}}
+
+ # This hook allows you to hook in your own ACLs without having to
+ # modify this file. If you do it like we suggest, you'll end up with
+ # a small performance penalty since there is an additional file being
+ # accessed. This doesn't happen if you leave the macro unset.
+ .ifdef LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE
+ .include LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE
+ .endif
+
+ # this is still supported for a transition period and is deprecated.
+ .ifdef WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE
+ .include WHITELIST_LOCAL_DENY_LOCAL_ACL_FILE
+ .endif
diff --git a/debian/debconf/conf.d/acl/30_exim4-config_check_mail b/debian/debconf/conf.d/acl/30_exim4-config_check_mail
new file mode 100644
index 0000000..f8c53d6
--- /dev/null
+++ b/debian/debconf/conf.d/acl/30_exim4-config_check_mail
@@ -0,0 +1,11 @@
+
+### acl/30_exim4-config_check_mail
+#################################
+
+# This access control list is used for every MAIL command in an incoming
+# SMTP message. The tests are run in order until the address is either
+# accepted or denied.
+#
+acl_check_mail:
+
+ accept
diff --git a/debian/debconf/conf.d/acl/30_exim4-config_check_rcpt b/debian/debconf/conf.d/acl/30_exim4-config_check_rcpt
new file mode 100644
index 0000000..0403165
--- /dev/null
+++ b/debian/debconf/conf.d/acl/30_exim4-config_check_rcpt
@@ -0,0 +1,358 @@
+
+### acl/30_exim4-config_check_rcpt
+#################################
+
+# define macros to be used below in this file to check recipient
+# local parts for strange characters. Documentation below.
+# This blocks local parts that begin with a dot or contain a quite
+# broad range of non-alphanumeric characters.
+
+.ifndef CHECK_RCPT_LOCAL_LOCALPARTS
+CHECK_RCPT_LOCAL_LOCALPARTS = ^[.] : ^.*[@%!/|`#&?]
+.endif
+
+.ifndef CHECK_RCPT_REMOTE_LOCALPARTS
+CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!`#&?] : ^.*/\\.\\./
+.endif
+
+# This access control list is used for every RCPT command in an incoming
+# SMTP message. The tests are run in order until the address is either
+# accepted or denied.
+#
+acl_check_rcpt:
+
+ # Accept if the source is local SMTP (i.e. not over TCP/IP). We do this by
+ # testing for an empty sending host field.
+ accept
+ hosts = :
+ control = dkim_disable_verify
+
+ # Do not try to verify DKIM signatures of incoming mail if DC_minimaldns
+ # or DISABLE_DKIM_VERIFY are set.
+.ifdef DC_minimaldns
+ warn
+ control = dkim_disable_verify
+.else
+.ifdef DISABLE_DKIM_VERIFY
+ warn
+ control = dkim_disable_verify
+.endif
+.endif
+
+ # The following section of the ACL is concerned with local parts that contain
+ # certain non-alphanumeric characters. Dots in unusual places are
+ # handled by this ACL as well.
+ #
+ # Non-alphanumeric characters other than dots are rarely found in genuine
+ # local parts, but are often tried by people looking to circumvent
+ # relaying restrictions. Therefore, although they are valid in local
+ # parts, these rules disallow certain non-alphanumeric characters, as
+ # a precaution.
+ #
+ # Empty components (two dots in a row) are not valid in RFC 2822, but Exim
+ # allows them because they have been encountered. (Consider local parts
+ # constructed as "firstinitial.secondinitial.familyname" when applied to
+ # a name without a second initial.) However, a local part starting
+ # with a dot or containing /../ can cause trouble if it is used as part of a
+ # file name (e.g. for a mailing list). This is also true for local parts that
+ # contain slashes. A pipe symbol can also be troublesome if the local part is
+ # incorporated unthinkingly into a shell command line.
+ #
+ # These ACL components will block recipient addresses that are valid
+ # from an RFC5322 point of view. We chose to have them blocked by
+ # default for security reasons.
+ #
+ # If you feel that your site should have less strict recipient
+ # checking, please feel free to change the default values of the macros
+ # defined in main/01_exim4-config_listmacrosdefs or override them from a
+ # local configuration file.
+ #
+ # Two different rules are used. The first one has a quite strict
+ # default, and is applied to messages that are addressed to one of the
+ # local domains handled by this host.
+
+ # The default value of CHECK_RCPT_LOCAL_LOCALPARTS is defined
+ # at the top of this file.
+ .ifdef CHECK_RCPT_LOCAL_LOCALPARTS
+ deny
+ domains = +local_domains
+ local_parts = CHECK_RCPT_LOCAL_LOCALPARTS
+ message = restricted characters in address
+ .endif
+
+
+ # The second rule applies to all other domains, and its default is
+ # considerably less strict.
+
+ # The default value of CHECK_RCPT_REMOTE_LOCALPARTS is defined in
+ # main/01_exim4-config_listmacrosdefs:
+ # CHECK_RCPT_REMOTE_LOCALPARTS = ^[./|] : ^.*[@%!`#&?] : ^.*/\\.\\./
+
+ # It allows local users to send outgoing messages to sites
+ # that use slashes and vertical bars in their local parts. It blocks
+ # local parts that begin with a dot, slash, or vertical bar, but allows
+ # these characters within the local part. However, the sequence /../ is
+ # barred. The use of some other non-alphanumeric characters is blocked.
+ # Single quotes might probably be dangerous as well, but they're
+ # allowed by the default regexps to avoid rejecting mails to Ireland.
+ # The motivation here is to prevent local users (or local users' malware)
+ # from mounting certain kinds of attack on remote sites.
+ .ifdef CHECK_RCPT_REMOTE_LOCALPARTS
+ deny
+ domains = !+local_domains
+ local_parts = CHECK_RCPT_REMOTE_LOCALPARTS
+ message = restricted characters in address
+ .endif
+
+
+ # Accept mail to postmaster in any local domain, regardless of the source,
+ # and without verifying the sender.
+ #
+ accept
+ .ifndef CHECK_RCPT_POSTMASTER
+ local_parts = postmaster
+ .else
+ local_parts = CHECK_RCPT_POSTMASTER
+ .endif
+ domains = +local_domains : +relay_to_domains
+
+
+ # Deny unless the sender address can be verified.
+ #
+ # This is disabled by default so that DNSless systems don't break. If
+ # your system can do DNS lookups without delay or cost, you might want
+ # to enable this feature.
+ #
+ # This feature does not work in smarthost and satellite setups as
+ # with these setups all domains pass verification. See spec.txt section
+ # "Access control lists" subsection "Address verification" with the added
+ # information that a smarthost/satellite setup routes all non-local e-mail
+ # to the smarthost.
+ .ifdef CHECK_RCPT_VERIFY_SENDER
+ deny
+ !acl = acl_local_deny_exceptions
+ !verify = sender
+ message = Sender verification failed
+ .endif
+
+ # Verify senders listed in local_sender_callout with a callout.
+ #
+ # In smarthost and satellite setups, this causes the callout to be
+ # done to the smarthost. Verification will thus only be reliable if the
+ # smarthost does reject illegal addresses in the SMTP dialog.
+ deny
+ !acl = acl_local_deny_exceptions
+ senders = ${if exists{CONFDIR/local_sender_callout}\
+ {CONFDIR/local_sender_callout}\
+ {}}
+ !verify = sender/callout
+
+ .ifndef CHECK_RCPT_NO_FAIL_TOO_MANY_BAD_RCPT
+ # Reject all RCPT commands after too many bad recipients
+ # This is partly a defense against spam abuse and partly attacker abuse.
+ # Real senders should manage, by the time they get to 10 RCPT directives,
+ # to have had at least half of them be real addresses.
+ #
+ # This is a lightweight check and can protect you against repeated
+ # invocations of more heavy-weight checks which would come after it.
+
+ deny condition = ${if and {\
+ {>{$rcpt_count}{10}}\
+ {<{$recipients_count}{${eval:$rcpt_count/2}}} }}
+ message = Rejected for too many bad recipients
+ logwrite = REJECT [$sender_host_address]: bad recipient count high [${eval:$rcpt_count-$recipients_count}]
+ .endif
+
+ # Accept if the message comes from one of the hosts for which we are an
+ # outgoing relay. It is assumed that such hosts are most likely to be MUAs,
+ # so we set control=submission to make Exim treat the message as a
+ # submission. It will fix up various errors in the message, for example, the
+ # lack of a Date: header line. If you are actually relaying out out from
+ # MTAs, you may want to disable this. If you are handling both relaying from
+ # MTAs and submissions from MUAs you should probably split them into two
+ # lists, and handle them differently.
+
+ # Recipient verification is omitted here, because in many cases the clients
+ # are dumb MUAs that don't cope well with SMTP error responses. If you are
+ # actually relaying out from MTAs, you should probably add recipient
+ # verification here.
+
+ # Note that, by putting this test before any DNS black list checks, you will
+ # always accept from these hosts, even if they end up on a black list. The
+ # assumption is that they are your friends, and if they get onto black
+ # list, it is a mistake.
+ accept
+ hosts = +relay_from_hosts
+ control = submission/sender_retain
+ control = dkim_disable_verify
+
+
+ # Accept if the message arrived over an authenticated connection, from
+ # any host. Again, these messages are usually from MUAs, so recipient
+ # verification is omitted, and submission mode is set. And again, we do this
+ # check before any black list tests.
+ accept
+ authenticated = *
+ control = submission/sender_retain
+ control = dkim_disable_verify
+
+ # Insist that any other recipient address that we accept is either in one of
+ # our local domains, or is in a domain for which we explicitly allow
+ # relaying. Any other domain is rejected as being unacceptable for relaying.
+ require
+ message = relay not permitted
+ domains = +local_domains : +relay_to_domains
+
+
+ # We also require all accepted addresses to be verifiable. This check will
+ # do local part verification for local domains, but only check the domain
+ # for remote domains.
+ require
+ verify = recipient
+
+
+ # Verify recipients listed in local_rcpt_callout with a callout.
+ # This is especially handy for forwarding MX hosts (secondary MX or
+ # mail hubs) of domains that receive a lot of spam to non-existent
+ # addresses. The only way to check local parts for remote relay
+ # domains is to use a callout (add /callout), but please read the
+ # documentation about callouts before doing this.
+ deny
+ !acl = acl_local_deny_exceptions
+ recipients = ${if exists{CONFDIR/local_rcpt_callout}\
+ {CONFDIR/local_rcpt_callout}\
+ {}}
+ !verify = recipient/callout
+
+
+ # CONFDIR/local_sender_blacklist holds a list of envelope senders that
+ # should have their access denied to the local host. Incoming messages
+ # with one of these senders are rejected at RCPT time.
+ #
+ # The explicit white lists are honored as well as negative items in
+ # the black list. See exim4-config_files(5) for details.
+ deny
+ !acl = acl_local_deny_exceptions
+ senders = ${if exists{CONFDIR/local_sender_blacklist}\
+ {CONFDIR/local_sender_blacklist}\
+ {}}
+ message = sender envelope address $sender_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster
+ log_message = sender envelope address is locally blacklisted.
+
+
+ # deny bad sites (IP address)
+ # CONFDIR/local_host_blacklist holds a list of host names, IP addresses
+ # and networks (CIDR notation) that should have their access denied to
+ # The local host. Messages coming in from a listed host will have all
+ # RCPT statements rejected.
+ #
+ # The explicit white lists are honored as well as negative items in
+ # the black list. See exim4-config_files(5) for details.
+ deny
+ !acl = acl_local_deny_exceptions
+ hosts = ${if exists{CONFDIR/local_host_blacklist}\
+ {CONFDIR/local_host_blacklist}\
+ {}}
+ message = sender IP address $sender_host_address is locally blacklisted here. If you think this is wrong, get in touch with postmaster
+ log_message = sender IP address is locally blacklisted.
+
+
+ # Warn if the sender host does not have valid reverse DNS.
+ #
+ # If your system can do DNS lookups without delay or cost, you might want
+ # to enable this.
+ # If sender_host_address is defined, it's a remote call. If
+ # sender_host_name is not defined, then reverse lookup failed. Use
+ # this instead of !verify = reverse_host_lookup to catch deferrals
+ # as well as outright failures.
+ .ifdef CHECK_RCPT_REVERSE_DNS
+ warn
+ condition = ${if and{{def:sender_host_address}{!def:sender_host_name}}\
+ {yes}{no}}
+ add_header = X-Host-Lookup-Failed: Reverse DNS lookup failed for $sender_host_address (${if eq{$host_lookup_failed}{1}{failed}{deferred}})
+ .endif
+
+
+ .ifdef CHECK_RCPT_SPF
+ .ifdef _HAVE_SPF
+ deny
+ !acl = acl_local_deny_exceptions
+ spf = fail
+ message = [SPF] $sender_host_address is not allowed to send mail from \
+ ${if def:sender_address_domain {$sender_address_domain}{$sender_helo_name}}.
+ log_message = SPF check failed.
+
+ defer
+ !acl = acl_local_deny_exceptions
+ spf = temperror
+ message = Temporary DNS error while checking SPF record. Try again later.
+
+ warn
+ spf = pass:softfail:neutral:permerror
+ add_header = :at_start:$spf_received
+ .endif
+ .endif
+
+
+ # Check against classic DNS "black" lists (DNSBLs) which list
+ # sender IP addresses
+ .ifdef CHECK_RCPT_IP_DNSBLS
+ warn
+ dnslists = CHECK_RCPT_IP_DNSBLS
+ add_header = X-Warning: $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
+ log_message = $sender_host_address is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
+ .endif
+
+
+ # Check against DNSBLs which list sender domains, with an option to locally
+ # whitelist certain domains that might be blacklisted.
+ #
+ # Note: If you define CHECK_RCPT_DOMAIN_DNSBLS, you must append
+ # "/$sender_address_domain" after each domain. For example:
+ # CHECK_RCPT_DOMAIN_DNSBLS = rhsbl.foo.org/$sender_address_domain \
+ # : rhsbl.bar.org/$sender_address_domain
+ .ifdef CHECK_RCPT_DOMAIN_DNSBLS
+ warn
+ !senders = ${if exists{CONFDIR/local_domain_dnsbl_whitelist}\
+ {CONFDIR/local_domain_dnsbl_whitelist}\
+ {}}
+ dnslists = CHECK_RCPT_DOMAIN_DNSBLS
+ add_header = X-Warning: $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
+ log_message = $sender_address_domain is listed at $dnslist_domain ($dnslist_value: $dnslist_text)
+ .endif
+
+
+ # This hook allows you to hook in your own ACLs without having to
+ # modify this file. If you do it like we suggest, you'll end up with
+ # a small performance penalty since there is an additional file being
+ # accessed. This doesn't happen if you leave the macro unset.
+ .ifdef CHECK_RCPT_LOCAL_ACL_FILE
+ .include CHECK_RCPT_LOCAL_ACL_FILE
+ .endif
+
+
+ #############################################################################
+ # This check is commented out because it is recognized that not every
+ # sysadmin will want to do it. If you enable it, the check performs
+ # Client SMTP Authorization (csa) checks on the sending host. These checks
+ # do DNS lookups for SRV records. The CSA proposal is currently (May 2005)
+ # an Internet draft. You can, of course, add additional conditions to this
+ # ACL statement to restrict the CSA checks to certain hosts only.
+ #
+ # require verify = csa
+ #############################################################################
+
+
+ # Accept if the address is in a domain for which we are an incoming relay,
+ # but again, only if the recipient can be verified.
+
+ accept
+ domains = +relay_to_domains
+ endpass
+ verify = recipient
+
+
+ # At this point, the address has passed all the checks that have been
+ # configured, so we accept it unconditionally.
+
+ accept
diff --git a/debian/debconf/conf.d/acl/40_exim4-config_check_data b/debian/debconf/conf.d/acl/40_exim4-config_check_data
new file mode 100644
index 0000000..ac198f9
--- /dev/null
+++ b/debian/debconf/conf.d/acl/40_exim4-config_check_data
@@ -0,0 +1,96 @@
+
+### acl/40_exim4-config_check_data
+#################################
+
+# This ACL is used after the contents of a message have been received. This
+# is the ACL in which you can test a message's headers or body, and in
+# particular, this is where you can invoke external virus or spam scanners.
+
+acl_check_data:
+
+ # Deny if the message contains an overlong line. Per the standards
+ # we should never receive one such via SMTP.
+ #
+ .ifndef IGNORE_SMTP_LINE_LENGTH_LIMIT
+ deny
+ condition = ${if > {$max_received_linelength}{998}}
+ message = maximum allowed line length is 998 octets, \
+ got $max_received_linelength
+ .endif
+
+ # Deny if the headers contain badly-formed addresses.
+ #
+ .ifndef NO_CHECK_DATA_VERIFY_HEADER_SYNTAX
+ deny
+ !acl = acl_local_deny_exceptions
+ !verify = header_syntax
+ message = header syntax
+ log_message = header syntax ($acl_verify_message)
+ .endif
+
+
+ # require that there is a verifiable sender address in at least
+ # one of the "Sender:", "Reply-To:", or "From:" header lines.
+ .ifdef CHECK_DATA_VERIFY_HEADER_SENDER
+ deny
+ !acl = acl_local_deny_exceptions
+ !verify = header_sender
+ message = No verifiable sender address in message headers
+ .endif
+
+
+ # Deny if the message contains malware. Before enabling this check, you
+ # must install a virus scanner and set the av_scanner option in the
+ # main configuration.
+ #
+ # exim4-daemon-heavy must be used for this section to work.
+ #
+ # deny
+ # malware = *
+ # message = This message was detected as possible malware ($malware_name).
+
+
+ # Add headers to a message if it is judged to be spam. Before enabling this,
+ # you must install SpamAssassin. You may also need to set the spamd_address
+ # option in the main configuration.
+ #
+ # exim4-daemon-heavy must be used for this section to work.
+ #
+ # Please note that this is only suiteable as an example. See
+ # /usr/share/doc/exim4-base/README.Debian.gz
+ #
+ # See the exim docs and the exim wiki for more suitable examples.
+ #
+ # # Remove internal headers
+ # warn
+ # remove_header = X-Spam_score: X-Spam_score_int : X-Spam_bar : \
+ # X-Spam_report
+ #
+ # warn
+ # condition = ${if <{$message_size}{120k}{1}{0}}
+ # # ":true" to add headers/acl variables even if not spam
+ # spam = nobody:true
+ # add_header = X-Spam_score: $spam_score
+ # add_header = X-Spam_bar: $spam_bar
+ # # Do not enable this unless you have shorted SpamAssassin's report
+ # #add_header = X-Spam_report: $spam_report
+ #
+ # Reject spam messages (score >15.0).
+ # This breaks mailing list and forward messages.
+ # deny
+ # condition = ${if <{$message_size}{120k}{1}{0}}
+ # condition = ${if >{$spam_score_int}{150}{true}{false}}
+ # message = Classified as spam (score $spam_score)
+
+
+ # This hook allows you to hook in your own ACLs without having to
+ # modify this file. If you do it like we suggest, you'll end up with
+ # a small performance penalty since there is an additional file being
+ # accessed. This doesn't happen if you leave the macro unset.
+ .ifdef CHECK_DATA_LOCAL_ACL_FILE
+ .include CHECK_DATA_LOCAL_ACL_FILE
+ .endif
+
+
+ # accept otherwise
+ accept
diff --git a/debian/debconf/conf.d/auth/00_exim4-config_header b/debian/debconf/conf.d/auth/00_exim4-config_header
new file mode 100644
index 0000000..c5f8fc1
--- /dev/null
+++ b/debian/debconf/conf.d/auth/00_exim4-config_header
@@ -0,0 +1,8 @@
+
+######################################################################
+# AUTHENTICATION CONFIGURATION #
+######################################################################
+
+begin authenticators
+
+
diff --git a/debian/debconf/conf.d/auth/30_exim4-config_examples b/debian/debconf/conf.d/auth/30_exim4-config_examples
new file mode 100644
index 0000000..21b32f8
--- /dev/null
+++ b/debian/debconf/conf.d/auth/30_exim4-config_examples
@@ -0,0 +1,282 @@
+
+### auth/30_exim4-config_examples
+#################################
+
+# The examples below are for server side authentication, when the
+# local exim is SMTP server and clients authenticate to the local exim.
+
+# They allow two styles of plain-text authentication against an
+# CONFDIR/passwd file whose syntax is described in exim4_passwd(5).
+
+# Hosts that are allowed to use AUTH are defined by the
+# auth_advertise_hosts option in the main configuration. The default is
+# "*", which allows authentication to all hosts over all kinds of
+# connections if there is at least one authenticator defined here.
+# Authenticators which rely on unencrypted clear text passwords don't
+# advertise on unencrypted connections by default. Thus, it might be
+# wise to set up TLS to allow encrypted connections. If TLS cannot be
+# used for some reason, you can set AUTH_SERVER_ALLOW_NOTLS_PASSWORDS to
+# advertise unencrypted clear text password based authenticators on all
+# connections. As this is severely reducing security, using TLS is
+# preferred over allowing clear text password based authenticators on
+# unencrypted connections.
+
+# PLAIN authentication has no server prompts. The client sends its
+# credentials in one lump, containing an authorization ID (which we do not
+# use), an authentication ID, and a password. The latter two appear as
+# $auth2 and $auth3 in the configuration and should be checked against a
+# valid username and password. In a real configuration you would typically
+# use $auth2 as a lookup key, and compare $auth3 against the result of the
+# lookup, perhaps using the crypteq{}{} condition.
+
+# plain_server:
+# driver = plaintext
+# public_name = PLAIN
+# server_condition = "${if crypteq{$auth3}{${extract{1}{:}{${lookup{$auth2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}"
+# server_set_id = $auth2
+# server_prompts = :
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+
+# LOGIN authentication has traditional prompts and responses. There is no
+# authorization ID in this mechanism, so unlike PLAIN the username and
+# password are $auth1 and $auth2. Apart from that you can use the same
+# server_condition setting for both authenticators.
+
+# login_server:
+# driver = plaintext
+# public_name = LOGIN
+# server_prompts = "Username:: : Password::"
+# server_condition = "${if crypteq{$auth2}{${extract{1}{:}{${lookup{$auth1}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}"
+# server_set_id = $auth1
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+#
+# cram_md5_server:
+# driver = cram_md5
+# public_name = CRAM-MD5
+# server_secret = ${extract{2}{:}{${lookup{$auth1}lsearch{CONFDIR/passwd}{$value}fail}}}
+# server_set_id = $auth1
+
+# Here is an example of CRAM-MD5 authentication against PostgreSQL:
+#
+# psqldb_auth_server:
+# driver = cram_md5
+# public_name = CRAM-MD5
+# server_secret = ${lookup pgsql{SELECT pw FROM users WHERE username = '${quote_pgsql:$auth1}'}{$value}fail}
+# server_set_id = $auth1
+
+# Authenticate against local passwords using sasl2-bin
+# Requires exim_uid to be a member of sasl group, see README.Debian.gz
+# plain_saslauthd_server:
+# driver = plaintext
+# public_name = PLAIN
+# server_condition = ${if saslauthd{{$auth2}{$auth3}}{1}{0}}
+# server_set_id = $auth2
+# server_prompts = :
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+#
+# login_saslauthd_server:
+# driver = plaintext
+# public_name = LOGIN
+# server_prompts = "Username:: : Password::"
+# # don't send system passwords over unencrypted connections
+# server_condition = ${if saslauthd{{$auth1}{$auth2}}{1}{0}}
+# server_set_id = $auth1
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+#
+# ntlm_sasl_server:
+# driver = cyrus_sasl
+# public_name = NTLM
+# server_realm = <short main hostname>
+# server_set_id = $auth1
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+#
+# digest_md5_sasl_server:
+# driver = cyrus_sasl
+# public_name = DIGEST-MD5
+# server_realm = <short main hostname>
+# server_set_id = $auth1
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+
+# Authentcate against cyrus-sasl
+# This is mainly untested, please report any problems to
+# pkg-exim4-users@lists.alioth.debian.org.
+# cram_md5_sasl_server:
+# driver = cyrus_sasl
+# public_name = CRAM-MD5
+# server_realm = <short main hostname>
+# server_set_id = $auth1
+#
+# plain_sasl_server:
+# driver = cyrus_sasl
+# public_name = PLAIN
+# server_realm = <short main hostname>
+# server_set_id = $auth1
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+#
+# login_sasl_server:
+# driver = cyrus_sasl
+# public_name = LOGIN
+# server_realm = <short main hostname>
+# server_set_id = $auth1
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+
+# Authenticate against courier authdaemon
+
+# This is now the (working!) example from
+# http://www.exim.org/eximwiki/FAQ/Policy_controls/Q0730
+# Possible pitfall: access rights on /run/courier/authdaemon/socket.
+# plain_courier_authdaemon:
+# driver = plaintext
+# public_name = PLAIN
+# server_condition = \
+# ${extract {ADDRESS} \
+# {${readsocket{/run/courier/authdaemon/socket} \
+# {AUTH ${strlen:exim\nlogin\n$auth2\n$auth3\n}\nexim\nlogin\n$auth2\n$auth3\n} }} \
+# {yes} \
+# fail}
+# server_set_id = $auth2
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+
+# login_courier_authdaemon:
+# driver = plaintext
+# public_name = LOGIN
+# server_prompts = Username:: : Password::
+# server_condition = \
+# ${extract {ADDRESS} \
+# {${readsocket{/run/courier/authdaemon/socket} \
+# {AUTH ${strlen:exim\nlogin\n$auth1\n$auth2\n}\nexim\nlogin\n$auth1\n$auth2\n} }} \
+# {yes} \
+# fail}
+# server_set_id = $auth1
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+
+# This one is a bad hack to support the broken version 4.xx of
+# Microsoft Outlook Express which violates the RFCs by demanding
+# "250-AUTH=" instead of "250-AUTH ".
+# If your list of offered authenticators is other than PLAIN and LOGIN,
+# you need to adapt the public_name line manually.
+# It has to be the last authenticator to work and has not been tested
+# well. Use at your own risk.
+# See the thread entry point from
+# http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050214/msg00213.html
+# for the related discussion on the exim-users mailing list.
+# Thanks to Fred Viles for this great work.
+
+# support_broken_outlook_express_4_server:
+# driver = plaintext
+# public_name = "\r\n250-AUTH=PLAIN LOGIN"
+# server_prompts = User Name : Password
+# server_condition = no
+# .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
+# server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
+# .endif
+
+# Use dovecot as authentication backend
+# Requires changes to dovecot configuration:
+# 8X---------------------
+# --- /etc/dovecot/conf.d/10-master.conf 2020-12-22 13:26:52.000000000 +0000
+# +++ /etc/dovecot/conf.d/10-master.conf 2022-07-13 11:17:02.479100984 +0000
+# @@ -108,6 +108,14 @@
+# # mode = 0666
+# #}
+#
+# +### SASL listener for exim start
+# + # SASL exim
+# + unix_listener /var/spool/exim4/dovecot.auth-client {
+# + mode = 0660
+# + group = Debian-exim
+# + }
+# +### SASL listener for exim end
+# +
+# # Auth process is run as this user.
+# #user = $default_internal_user
+# }
+# 8X---------------------
+#
+# dovecot_plain_server:
+# driver = dovecot
+# public_name = PLAIN
+# server_socket = /var/spool/exim4/dovecot.auth-client
+# server_set_id = $auth1
+
+##############
+# See /usr/share/doc/exim4-base/README.Debian.gz
+##############
+
+# These examples below are the equivalent for client side authentication.
+# They get the passwords from CONFDIR/passwd.client, whose format is
+# defined in exim4_passwd_client(5)
+
+# Because AUTH PLAIN and AUTH LOGIN send the password in clear, we
+# only allow these mechanisms over encrypted connections by default.
+# You can set AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS to allow unencrypted
+# clear text password authentication on all connections.
+
+cram_md5:
+ driver = cram_md5
+ public_name = CRAM-MD5
+ client_name = ${extract{1}{:}{${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}}}
+ client_secret = ${extract{2}{:}{${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}}}
+
+# this returns the matching line from passwd.client and doubles all ^
+PASSWDLINE=${sg{\
+ ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$value}fail}\
+ }\
+ {\\N[\\^]\\N}\
+ {^^}\
+ }
+
+plain:
+ driver = plaintext
+ public_name = PLAIN
+.ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS
+ client_send = "<; ${if !eq{$tls_out_cipher}{}\
+ {^${extract{1}{:}{PASSWDLINE}}\
+ ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}\
+ }fail}"
+.else
+ client_send = "<; ^${extract{1}{:}{PASSWDLINE}}\
+ ^${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}"
+.endif
+
+login:
+ driver = plaintext
+ public_name = LOGIN
+.ifndef AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS
+ # Return empty string if not non-TLS AND looking up $host in passwd-file
+ # yields a non-empty string; fail otherwise.
+ client_send = "<; ${if and{\
+ {!eq{$tls_out_cipher}{}}\
+ {!eq{PASSWDLINE}{}}\
+ }\
+ {}fail}\
+ ; ${extract{1}{::}{PASSWDLINE}}\
+ ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}"
+.else
+ # Return empty string if looking up $host in passwd-file yields a
+ # non-empty string; fail otherwise.
+ client_send = "<; ${if !eq{PASSWDLINE}{}\
+ {}fail}\
+ ; ${extract{1}{::}{PASSWDLINE}}\
+ ; ${sg{PASSWDLINE}{\\N([^:]+:)(.*)\\N}{\\$2}}"
+.endif
diff --git a/debian/debconf/conf.d/main/01_exim4-config_listmacrosdefs b/debian/debconf/conf.d/main/01_exim4-config_listmacrosdefs
new file mode 100644
index 0000000..baa48fa
--- /dev/null
+++ b/debian/debconf/conf.d/main/01_exim4-config_listmacrosdefs
@@ -0,0 +1,81 @@
+######################################################################
+# Runtime configuration file for Exim 4 (Debian Packaging) #
+######################################################################
+
+######################################################################
+# /etc/exim4/exim4.conf.template is only used with the non-split
+# configuration scheme.
+# /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs is only used
+# with the split configuration scheme.
+# If you find this comment anywhere else, somebody copied it there.
+# Documentation about the Debian exim4 configuration scheme can be
+# found in /usr/share/doc/exim4-base/README.Debian.gz.
+######################################################################
+
+######################################################################
+# MAIN CONFIGURATION SETTINGS #
+######################################################################
+
+# Just for reference and scripts.
+# On Debian systems, the main binary is installed as exim4 to avoid
+# conflicts with the exim 3 packages.
+exim_path = /usr/sbin/exim4
+
+# Macro defining the main configuration directory.
+# We do not use absolute paths.
+.ifndef CONFDIR
+CONFDIR = /etc/exim4
+.endif
+
+# debconf-driven macro definitions get inserted after this line
+UPEX4CmacrosUPEX4C = 1
+
+# Create domain and host lists for relay control
+# '@' refers to 'the name of the local host'
+
+# List of domains considered local for exim. Domains not listed here
+# need to be deliverable remotely.
+domainlist local_domains = MAIN_LOCAL_DOMAINS
+
+# List of recipient domains to relay _to_. Use this list if you're -
+# for example - fallback MX or mail gateway for domains.
+domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS
+
+# List of sender networks (IP addresses) to _unconditionally_ relay
+# _for_. If you intend to be SMTP AUTH server, you do not need to enter
+# anything here.
+hostlist relay_from_hosts = MAIN_RELAY_NETS
+
+
+# Decide which domain to use to add to all unqualified addresses.
+# If MAIN_PRIMARY_HOSTNAME_AS_QUALIFY_DOMAIN is defined, the primary
+# hostname is used. If not, but MAIN_QUALIFY_DOMAIN is set, the value
+# of MAIN_QUALIFY_DOMAIN is used. If both macros are not defined,
+# the first line of /etc/mailname is used.
+.ifndef MAIN_PRIMARY_HOSTNAME_AS_QUALIFY_DOMAIN
+.ifndef MAIN_QUALIFY_DOMAIN
+qualify_domain = ETC_MAILNAME
+.else
+qualify_domain = MAIN_QUALIFY_DOMAIN
+.endif
+.endif
+
+# listen on all all interfaces?
+.ifdef MAIN_LOCAL_INTERFACES
+local_interfaces = MAIN_LOCAL_INTERFACES
+.endif
+
+.ifndef LOCAL_DELIVERY
+# The default transport, set in /etc/exim4/update-exim4.conf.conf,
+# defaulting to mail_spool. See CONFDIR/conf.d/transport/ for possibilities
+LOCAL_DELIVERY=mail_spool
+.endif
+
+# The gecos field in /etc/passwd holds not only the name. see passwd(5).
+gecos_pattern = ^([^,:]*)
+gecos_name = $1
+
+# always log tls_peerdn as we use TLS for outgoing connects by default
+.ifndef MAIN_LOG_SELECTOR
+MAIN_LOG_SELECTOR = +smtp_protocol_error +smtp_syntax_error +tls_certificate_verified +tls_peerdn
+.endif
diff --git a/debian/debconf/conf.d/main/02_exim4-config_options b/debian/debconf/conf.d/main/02_exim4-config_options
new file mode 100644
index 0000000..ab87fbd
--- /dev/null
+++ b/debian/debconf/conf.d/main/02_exim4-config_options
@@ -0,0 +1,233 @@
+
+### main/02_exim4-config_options
+#################################
+
+
+# Defines the access control list that is run when an
+# SMTP MAIL command is received.
+#
+.ifndef MAIN_ACL_CHECK_MAIL
+MAIN_ACL_CHECK_MAIL = acl_check_mail
+.endif
+acl_smtp_mail = MAIN_ACL_CHECK_MAIL
+
+
+# Defines the access control list that is run when an
+# SMTP RCPT command is received.
+#
+.ifndef MAIN_ACL_CHECK_RCPT
+MAIN_ACL_CHECK_RCPT = acl_check_rcpt
+.endif
+acl_smtp_rcpt = MAIN_ACL_CHECK_RCPT
+
+
+# Defines the access control list that is run when an
+# SMTP DATA command is received.
+#
+.ifndef MAIN_ACL_CHECK_DATA
+MAIN_ACL_CHECK_DATA = acl_check_data
+.endif
+acl_smtp_data = MAIN_ACL_CHECK_DATA
+
+
+# Message size limit. The default (used when MESSAGE_SIZE_LIMIT
+# is unset) is 50 MB
+.ifdef MESSAGE_SIZE_LIMIT
+message_size_limit = MESSAGE_SIZE_LIMIT
+.endif
+
+
+# If you are running exim4-daemon-heavy or a custom version of Exim that
+# was compiled with the content-scanning extension, you can cause incoming
+# messages to be automatically scanned for viruses. You have to modify the
+# configuration in two places to set this up. The first of them is here,
+# where you define the interface to your scanner. This example is typical
+# for ClamAV; see the manual for details of what to set for other virus
+# scanners. The second modification is in the acl_check_data access
+# control list.
+
+# av_scanner = clamd:/run/clamav/clamd.ctl
+
+
+# For spam scanning, there is a similar option that defines the interface to
+# SpamAssassin. You do not need to set this if you are using the default, which
+# is shown in this commented example. As for virus scanning, you must also
+# modify the acl_check_data access control list to enable spam scanning.
+
+# spamd_address = 127.0.0.1 783
+
+# Domain used to qualify unqualified recipient addresses
+# If this option is not set, the qualify_domain value is used.
+# qualify_recipient = <value of qualify_domain>
+
+
+# Allow Exim to recognize addresses of the form "user@[10.11.12.13]",
+# where the domain part is a "domain literal" (an IP address) instead
+# of a named domain. The RFCs require this facility, but it is disabled
+# in the default config since it is rarely used and frequently abused.
+# Domain literal support also needs a special router, which is automatically
+# enabled if you use the enable macro MAIN_ALLOW_DOMAIN_LITERALS.
+# Additionally, you might want to make your local IP addresses (or @[])
+# local domains.
+.ifdef MAIN_ALLOW_DOMAIN_LITERALS
+allow_domain_literals
+.endif
+
+
+# Do a reverse DNS lookup on all incoming IP calls, in order to get the
+# true host name. If you feel this is too expensive, the networks for
+# which a lookup is done can be listed here.
+.ifndef DC_minimaldns
+.ifndef MAIN_HOST_LOOKUP
+MAIN_HOST_LOOKUP = *
+.endif
+host_lookup = MAIN_HOST_LOOKUP
+.endif
+
+# The setting below causes Exim to try to initialize the system resolver
+# library with DNSSEC support. It has no effect if your library lacks
+# DNSSEC support.
+dns_dnssec_ok = 1
+
+# In a minimaldns setup, update-exim4.conf guesses the hostname and
+# dumps it here to avoid DNS lookups being done at Exim run time.
+.ifdef MAIN_HARDCODE_PRIMARY_HOSTNAME
+primary_hostname = MAIN_HARDCODE_PRIMARY_HOSTNAME
+.endif
+
+# The settings below cause Exim to make RFC 1413 (ident) callbacks
+# for all incoming SMTP calls. You can limit the hosts to which these
+# calls are made, and/or change the timeout that is used. If you set
+# the timeout to zero, all RFC 1413 calls are disabled. RFC 1413 calls
+# are cheap and can provide useful information for tracing problem
+# messages, but some hosts and firewalls have problems with them.
+# This can result in a timeout instead of an immediate refused
+# connection, leading to delays on starting up SMTP sessions.
+# (The default was reduced from 30s to 5s for release 4.61. and to
+# disabled for release 4.86)
+#
+#rfc1413_hosts = *
+#rfc1413_query_timeout = 5s
+
+
+# Enable an efficiency feature. We advertise the feature; clients
+# may request to use it. For multi-recipient mails we then can
+# reject or accept per-user after the message is received.
+# This supports recipient-dependent content filtering; without it
+# you have to temp-reject any recipients after the first that have
+# incompatible filtering, and do the filtering in the data ACL.
+# Even with this enabled, you must support the old style for peers
+# not flagging support for PRDR (visible via $prdr_requested).
+prdr_enable = true
+
+# When using an external relay tester (such as rt.njabl.org and/or the
+# currently defunct relay-test.mail-abuse.org, the test may be aborted
+# since exim complains about "too many nonmail commands". If you want
+# the test to complete, add the host from where "your" relay tester
+# connects from to the MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS macro.
+# Please note that a non-empty setting may cause extra DNS lookups to
+# happen, which is the reason why this option is commented out in the
+# default settings.
+# MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS = !rt.njabl.org
+.ifdef MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS
+smtp_accept_max_nonmail_hosts = MAIN_SMTP_ACCEPT_MAX_NOMAIL_HOSTS
+.endif
+
+# By default, exim forces a Sender: header containing the local
+# account name at the local host name in all locally submitted messages
+# that don't have the local account name at the local host name in the
+# From: header, deletes any Sender: header present in the submitted
+# message and forces the envelope sender of all locally submitted
+# messages to the local account name at the local host name.
+# The following settings allow local users to specify their own envelope sender
+# in a locally submitted message. Sender: headers existing in a locally
+# submitted message are not removed, and no automatic Sender: headers
+# are added. These settings are fine for most hosts.
+# If you run exim on a classical multi-user systems where all users
+# have local mailboxes that can be reached via SMTP from the Internet
+# with the local FQDN as the domain part of the address, you might want
+# to disable the following three lines for traceability reasons.
+.ifndef MAIN_FORCE_SENDER
+local_from_check = false
+local_sender_retain = true
+untrusted_set_sender = *
+.endif
+
+
+# By default, Exim expects all envelope addresses to be fully qualified, that
+# is, they must contain both a local part and a domain. Configure exim
+# to accept unqualified addresses from certain hosts. When this is done,
+# unqualified addresses are qualified using the settings of qualify_domain
+# and/or qualify_recipient (see above).
+# sender_unqualified_hosts = <unset>
+# recipient_unqualified_hosts = <unset>
+
+
+# Configure Exim to support the "percent hack" for certain domains.
+# The "percent hack" is the feature by which mail addressed to x%y@z
+# (where z is one of the domains listed) is locally rerouted to x@y
+# and sent on. If z is not one of the "percent hack" domains, x%y is
+# treated as an ordinary local part. The percent hack is rarely needed
+# nowadays but frequently abused. You should not enable it unless you
+# are sure that you really need it.
+# percent_hack_domains = <unset>
+
+
+# Bounce handling
+.ifndef MAIN_IGNORE_BOUNCE_ERRORS_AFTER
+MAIN_IGNORE_BOUNCE_ERRORS_AFTER = 2d
+.endif
+ignore_bounce_errors_after = MAIN_IGNORE_BOUNCE_ERRORS_AFTER
+
+.ifndef MAIN_TIMEOUT_FROZEN_AFTER
+MAIN_TIMEOUT_FROZEN_AFTER = 7d
+.endif
+timeout_frozen_after = MAIN_TIMEOUT_FROZEN_AFTER
+
+.ifndef MAIN_FREEZE_TELL
+MAIN_FREEZE_TELL = postmaster
+.endif
+freeze_tell = MAIN_FREEZE_TELL
+
+
+# Define spool directory
+.ifndef SPOOLDIR
+SPOOLDIR = /var/spool/exim4
+.endif
+spool_directory = SPOOLDIR
+
+
+# trusted users can set envelope-from to arbitrary values
+.ifndef MAIN_TRUSTED_USERS
+MAIN_TRUSTED_USERS = uucp
+.endif
+trusted_users = MAIN_TRUSTED_USERS
+.ifdef MAIN_TRUSTED_GROUPS
+trusted_groups = MAIN_TRUSTED_GROUPS
+.endif
+
+
+# users in admin group can do many other things
+# admin_groups = <unset>
+
+
+# SMTP Banner. The example includes the Debian version in the SMTP dialog
+# MAIN_SMTP_BANNER = "${primary_hostname} ESMTP Exim ${version_number} (Debian package MAIN_PACKAGE_VERSION) ${tod_full}"
+# smtp_banner = $smtp_active_hostname ESMTP Exim $version_number $tod_full
+
+.ifdef MAIN_KEEP_ENVIRONMENT
+keep_environment = MAIN_KEEP_ENVIRONMENT
+.else
+# set option to empty value to avoid warning.
+keep_environment =
+.endif
+.ifdef MAIN_ADD_ENVIRONMENT
+add_environment = MAIN_ADD_ENVIRONMENT
+.endif
+
+.ifdef _OPT_MAIN_SMTPUTF8_ADVERTISE_HOSTS
+.ifndef MAIN_SMTPUTF8_ADVERTISE_HOSTS
+MAIN_SMTPUTF8_ADVERTISE_HOSTS =
+.endif
+smtputf8_advertise_hosts = MAIN_SMTPUTF8_ADVERTISE_HOSTS
+.endif
diff --git a/debian/debconf/conf.d/main/03_exim4-config_tlsoptions b/debian/debconf/conf.d/main/03_exim4-config_tlsoptions
new file mode 100644
index 0000000..268c4c1
--- /dev/null
+++ b/debian/debconf/conf.d/main/03_exim4-config_tlsoptions
@@ -0,0 +1,80 @@
+
+### main/03_exim4-config_tlsoptions
+#################################
+
+# TLS/SSL configuration for exim as an SMTP server.
+# See /usr/share/doc/exim4-base/README.Debian.gz for explanations.
+
+.ifdef MAIN_TLS_ENABLE
+# Defines what hosts to 'advertise' STARTTLS functionality to. The
+# default, *, will advertise to all hosts that connect with EHLO.
+.ifndef MAIN_TLS_ADVERTISE_HOSTS
+MAIN_TLS_ADVERTISE_HOSTS = *
+.endif
+tls_advertise_hosts = MAIN_TLS_ADVERTISE_HOSTS
+
+
+# Full paths to Certificate and Private Key. The Private Key file
+# must be kept 'secret' and should be owned by root.Debian-exim mode
+# 640 (-rw-r-----). exim-gencert takes care of these prerequisites.
+# Normally, exim4 looks for certificate and key in different files:
+# MAIN_TLS_CERTIFICATE - path to certificate file,
+# CONFDIR/exim.crt if unset
+# MAIN_TLS_PRIVATEKEY - path to private key file
+# CONFDIR/exim.key if unset
+# You can also configure exim to look for certificate and key in the
+# same file, set MAIN_TLS_CERTKEY to that file to enable. This takes
+# precedence over all other settings regarding certificate and key file.
+.ifdef MAIN_TLS_CERTKEY
+tls_certificate = MAIN_TLS_CERTKEY
+.else
+.ifndef MAIN_TLS_CERTIFICATE
+MAIN_TLS_CERTIFICATE = CONFDIR/exim.crt
+.endif
+tls_certificate = MAIN_TLS_CERTIFICATE
+
+.ifndef MAIN_TLS_PRIVATEKEY
+MAIN_TLS_PRIVATEKEY = CONFDIR/exim.key
+.endif
+tls_privatekey = MAIN_TLS_PRIVATEKEY
+.endif
+
+# Pointer to the CA Certificates against which client certificates are
+# checked. This is controlled by the `tls_verify_hosts' and
+# `tls_try_verify_hosts' lists below.
+# If you want to check server certificates, you need to add an
+# tls_verify_certificates statement to the smtp transport.
+# /etc/ssl/certs/ca-certificates.crt is generated by
+# the "ca-certificates" package's update-ca-certificates(8) command.
+.ifndef MAIN_TLS_VERIFY_CERTIFICATES
+MAIN_TLS_VERIFY_CERTIFICATES = ${if exists{/etc/ssl/certs/ca-certificates.crt}\
+ {/etc/ssl/certs/ca-certificates.crt}\
+ {/dev/null}}
+.endif
+tls_verify_certificates = MAIN_TLS_VERIFY_CERTIFICATES
+
+
+# A list of hosts which are constrained by `tls_verify_certificates'. A host
+# that matches `tls_verify_host' must present a certificate that is
+# verifyable through `tls_verify_certificates' in order to be accepted as an
+# SMTP client. If it does not, the connection is aborted.
+.ifdef MAIN_TLS_VERIFY_HOSTS
+tls_verify_hosts = MAIN_TLS_VERIFY_HOSTS
+.endif
+
+# A weaker form of checking: if a client matches `tls_try_verify_hosts' (but
+# not `tls_verify_hosts'), request a certificate and check it against
+# `tls_verify_certificates' but do not abort the connection if there is no
+# certificate or if the certificate presented does not match. (This
+# condition can be tested for in ACLs through `verify = certificate')
+# By default, this check is done for all hosts. It is known that some
+# clients (including incredimail's version downloadable in February
+# 2008) choke on this. To disable, set MAIN_TLS_TRY_VERIFY_HOSTS to an
+# empty value.
+.ifdef MAIN_TLS_TRY_VERIFY_HOSTS
+tls_try_verify_hosts = MAIN_TLS_TRY_VERIFY_HOSTS
+.endif
+
+.else
+# Use upstream defaults
+.endif
diff --git a/debian/debconf/conf.d/main/90_exim4-config_log_selector b/debian/debconf/conf.d/main/90_exim4-config_log_selector
new file mode 100644
index 0000000..685c404
--- /dev/null
+++ b/debian/debconf/conf.d/main/90_exim4-config_log_selector
@@ -0,0 +1,10 @@
+
+### main/90_exim4-config_log_selector
+#################################
+
+# uncomment this for debugging
+# MAIN_LOG_SELECTOR == MAIN_LOG_SELECTOR +all -subject -arguments
+
+.ifdef MAIN_LOG_SELECTOR
+log_selector = MAIN_LOG_SELECTOR
+.endif
diff --git a/debian/debconf/conf.d/retry/00_exim4-config_header b/debian/debconf/conf.d/retry/00_exim4-config_header
new file mode 100644
index 0000000..e2bb4a4
--- /dev/null
+++ b/debian/debconf/conf.d/retry/00_exim4-config_header
@@ -0,0 +1,7 @@
+
+######################################################################
+# RETRY CONFIGURATION #
+######################################################################
+
+begin retry
+
diff --git a/debian/debconf/conf.d/retry/30_exim4-config b/debian/debconf/conf.d/retry/30_exim4-config
new file mode 100644
index 0000000..52b002f
--- /dev/null
+++ b/debian/debconf/conf.d/retry/30_exim4-config
@@ -0,0 +1,19 @@
+
+### retry/30_exim4-config
+#################################
+
+# This single retry rule applies to all domains and all errors. It specifies
+# retries every 15 minutes for 2 hours, then increasing retry intervals,
+# starting at 1 hour and increasing each time by a factor of 1.5, up to 16
+# hours, then retries every 6 hours until 4 days have passed since the first
+# failed delivery.
+
+# Please note that these rules only limit the frequency of retries, the
+# effective retry-time depends on the frequency of queue-running, too.
+# See QUEUEINTERVAL in /etc/default/exim4.
+
+# Address or Domain Error Retries
+# ----------------- ----- -------
+
+* * F,2h,15m; G,16h,1h,1.5; F,4d,6h
+
diff --git a/debian/debconf/conf.d/rewrite/00_exim4-config_header b/debian/debconf/conf.d/rewrite/00_exim4-config_header
new file mode 100644
index 0000000..a32db17
--- /dev/null
+++ b/debian/debconf/conf.d/rewrite/00_exim4-config_header
@@ -0,0 +1,7 @@
+
+######################################################################
+# REWRITE CONFIGURATION #
+######################################################################
+
+begin rewrite
+
diff --git a/debian/debconf/conf.d/rewrite/31_exim4-config_rewriting b/debian/debconf/conf.d/rewrite/31_exim4-config_rewriting
new file mode 100644
index 0000000..b7415b6
--- /dev/null
+++ b/debian/debconf/conf.d/rewrite/31_exim4-config_rewriting
@@ -0,0 +1,16 @@
+
+### rewrite/31_exim4-config_rewriting
+#################################
+
+# This rewriting rule is particularly useful for dialup users who
+# don't have their own domain, but could be useful for anyone.
+# It looks up the real address of all local users in a file
+.ifndef NO_EAA_REWRITE_REWRITE
+*@+local_domains "${lookup{${local_part}}lsearch{/etc/email-addresses}\
+ {$value}fail}" Ffrs
+# identical rewriting rule for /etc/mailname
+*@ETC_MAILNAME "${lookup{${local_part}}lsearch{/etc/email-addresses}\
+ {$value}fail}" Ffrs
+.endif
+
+
diff --git a/debian/debconf/conf.d/router/00_exim4-config_header b/debian/debconf/conf.d/router/00_exim4-config_header
new file mode 100644
index 0000000..531e21f
--- /dev/null
+++ b/debian/debconf/conf.d/router/00_exim4-config_header
@@ -0,0 +1,11 @@
+
+######################################################################
+# ROUTERS CONFIGURATION #
+# Specifies how addresses are handled #
+######################################################################
+# THE ORDER IN WHICH THE ROUTERS ARE DEFINED IS IMPORTANT! #
+# An address is passed to each router in turn until it is accepted. #
+######################################################################
+
+begin routers
+
diff --git a/debian/debconf/conf.d/router/100_exim4-config_domain_literal b/debian/debconf/conf.d/router/100_exim4-config_domain_literal
new file mode 100644
index 0000000..d37fea6
--- /dev/null
+++ b/debian/debconf/conf.d/router/100_exim4-config_domain_literal
@@ -0,0 +1,18 @@
+
+### router/100_exim4-config_domain_literal
+#################################
+
+# This router handles e-mail addresses in "domain literal" form like
+# <user@[10.11.12.13]>. The RFCs require this facility, but it is disabled
+# in the default config since it is rarely used and frequently abused.
+# Domain literal support also needs to be enabled in the main config,
+# which is automatically done if you use the enable macro
+# MAIN_ALLOW_DOMAIN_LITERALS.
+
+.ifdef MAIN_ALLOW_DOMAIN_LITERALS
+domain_literal:
+ debug_print = "R: domain_literal for $local_part@$domain"
+ driver = ipliteral
+ domains = ! +local_domains
+ transport = remote_smtp
+.endif
diff --git a/debian/debconf/conf.d/router/150_exim4-config_hubbed_hosts b/debian/debconf/conf.d/router/150_exim4-config_hubbed_hosts
new file mode 100644
index 0000000..a0fcb26
--- /dev/null
+++ b/debian/debconf/conf.d/router/150_exim4-config_hubbed_hosts
@@ -0,0 +1,18 @@
+
+# router/150_exim4-config_hubbed_hosts
+#################################
+
+# route specific domains manually.
+#
+# see exim4-config_files(5) and spec.txt chapter 20.3 through 20.7 for
+# more detailed documentation.
+
+hubbed_hosts:
+ debug_print = "R: hubbed_hosts for $domain"
+ driver = manualroute
+ domains = "${if exists{CONFDIR/hubbed_hosts}\
+ {partial-lsearch;CONFDIR/hubbed_hosts}\
+ fail}"
+ same_domain_copy_routing = yes
+ route_data = ${lookup{$domain}partial-lsearch{CONFDIR/hubbed_hosts}}
+ transport = remote_smtp
diff --git a/debian/debconf/conf.d/router/200_exim4-config_primary b/debian/debconf/conf.d/router/200_exim4-config_primary
new file mode 100644
index 0000000..0022dc6
--- /dev/null
+++ b/debian/debconf/conf.d/router/200_exim4-config_primary
@@ -0,0 +1,92 @@
+
+### router/200_exim4-config_primary
+#################################
+# This file holds the primary router, responsible for nonlocal mails
+
+.ifdef DCconfig_internet
+# configtype=internet
+#
+# deliver mail to the recipient if recipient domain is a domain we
+# relay for. We do not ignore any target hosts here since delivering to
+# a site local or even a link local address might be wanted here, and if
+# such an address has found its way into the MX record of such a domain,
+# the local admin is probably in a place where that broken MX record
+# could be fixed.
+
+dnslookup_relay_to_domains:
+ debug_print = "R: dnslookup_relay_to_domains for $local_part@$domain"
+ driver = dnslookup
+ domains = ! +local_domains : +relay_to_domains
+ transport = remote_smtp
+ same_domain_copy_routing = yes
+ no_more
+
+# ignore private rfc1918, loopback, APIPA/link-local, local broadcast, unspecified, unique local, linked-scoped unicast and discard-Only
+.ifndef ROUTER_DNSLOOKUP_IGNORE_TARGET_HOSTS
+ROUTER_DNSLOOKUP_IGNORE_TARGET_HOSTS = <; 0.0.0.0 ; 127.0.0.0/8 ; 192.168.0.0/16 ; 172.16.0.0/12 ; 10.0.0.0/8 ; 169.254.0.0/16 ; 255.255.255.255 ; ::/128 ; ::1/128 ; fc00::/7 ; fe80::/10 ; 100::/64
+.endif
+
+# deliver mail directly to the recipient. This router is only reached
+# for domains that we do not relay for. Since we most probably can't
+# have broken MX records pointing to site local or link local IP
+# addresses fixed, we ignore target hosts pointing to these addresses.
+
+dnslookup:
+ debug_print = "R: dnslookup for $local_part@$domain"
+ driver = dnslookup
+ domains = ! +local_domains
+ transport = remote_smtp
+ same_domain_copy_routing = yes
+ ignore_target_hosts = ROUTER_DNSLOOKUP_IGNORE_TARGET_HOSTS
+ no_more
+
+.endif
+
+
+.ifdef DCconfig_local
+# configtype=local
+#
+# Stand-alone system, so generate an error for mail to a non-local domain
+nonlocal:
+ debug_print = "R: nonlocal for $local_part@$domain"
+ driver = redirect
+ domains = ! +local_domains
+ allow_fail
+ data = :fail: Mailing to remote domains not supported
+ no_more
+
+.endif
+
+
+.ifdef DCconfig_smarthost DCconfig_satellite
+# configtype=smarthost or configtype=satellite
+#
+# Send all non-local mail to a single other machine (smarthost).
+#
+# This means _ALL_ non-local mail goes to the smarthost. This will most
+# probably not do what you want for domains that are listed in
+# relay_domains. The most typical use for relay_domains is to control
+# relaying for incoming e-mail on secondary MX hosts. In that case,
+# it doesn't make sense to send the mail to the smarthost since the
+# smarthost will probably send the message right back here, causing a
+# loop.
+#
+# If you want to use a smarthost while being secondary MX for some
+# domains, you'll need to copy the dnslookup_relay_to_domains router
+# here so that mail to relay_domains is handled separately.
+
+smarthost:
+ debug_print = "R: smarthost for $local_part@$domain"
+ driver = manualroute
+ domains = ! +local_domains
+ transport = remote_smtp_smarthost
+ route_list = * DCsmarthost byname
+ host_find_failed = ignore
+ same_domain_copy_routing = yes
+ no_more
+
+.endif
+
+
+# The "no_more" above means that all later routers are for
+# domains in the local_domains list, i.e. just like Exim 3 directors.
diff --git a/debian/debconf/conf.d/router/300_exim4-config_real_local b/debian/debconf/conf.d/router/300_exim4-config_real_local
new file mode 100644
index 0000000..34ea282
--- /dev/null
+++ b/debian/debconf/conf.d/router/300_exim4-config_real_local
@@ -0,0 +1,22 @@
+
+### router/300_exim4-config_real_local
+#################################
+
+# This router allows reaching a local user while avoiding local
+# processing. This can be used to inform a user of a broken .forward
+# file, for example. The userforward router does this.
+
+COND_LOCAL_SUBMITTER = "\
+ ${if match_ip{$sender_host_address}{:@[]}\
+ {1}{0}\
+ }"
+
+real_local:
+ debug_print = "R: real_local for $local_part@$domain"
+ driver = accept
+ domains = +local_domains
+ condition = COND_LOCAL_SUBMITTER
+ local_part_prefix = real-
+ check_local_user
+ transport = LOCAL_DELIVERY
+
diff --git a/debian/debconf/conf.d/router/400_exim4-config_system_aliases b/debian/debconf/conf.d/router/400_exim4-config_system_aliases
new file mode 100644
index 0000000..f5f5f1c
--- /dev/null
+++ b/debian/debconf/conf.d/router/400_exim4-config_system_aliases
@@ -0,0 +1,44 @@
+
+### router/400_exim4-config_system_aliases
+#################################
+
+# This router handles aliasing using a traditional /etc/aliases file.
+#
+##### NB You must ensure that /etc/aliases exists. It used to be the case
+##### NB that every Unix had that file, because it was the Sendmail default.
+##### NB These days, there are systems that don't have it. Your aliases
+##### NB file should at least contain an alias for "postmaster".
+#
+# This router handles the local part in a case-insensitive way which
+# satisfies the RFCs requirement that postmaster be reachable regardless
+# of case. If you decide to handle /etc/aliases in a caseful way, you
+# need to make arrangements for a caseless postmaster.
+#
+# Delivery to arbitrary directories, files, and piping to programs in
+# /etc/aliases is disabled per default.
+# If that is a problem for you, see
+# /usr/share/doc/exim4-base/README.Debian.gz
+# for explanation and some workarounds.
+
+system_aliases:
+ debug_print = "R: system_aliases for $local_part@$domain"
+ driver = redirect
+ domains = +local_domains
+ allow_fail
+ allow_defer
+ data = ${lookup{$local_part}lsearch{/etc/aliases}}
+ .ifdef SYSTEM_ALIASES_USER
+ user = SYSTEM_ALIASES_USER
+ .endif
+ .ifdef SYSTEM_ALIASES_GROUP
+ group = SYSTEM_ALIASES_GROUP
+ .endif
+ .ifdef SYSTEM_ALIASES_FILE_TRANSPORT
+ file_transport = SYSTEM_ALIASES_FILE_TRANSPORT
+ .endif
+ .ifdef SYSTEM_ALIASES_PIPE_TRANSPORT
+ pipe_transport = SYSTEM_ALIASES_PIPE_TRANSPORT
+ .endif
+ .ifdef SYSTEM_ALIASES_DIRECTORY_TRANSPORT
+ directory_transport = SYSTEM_ALIASES_DIRECTORY_TRANSPORT
+ .endif
diff --git a/debian/debconf/conf.d/router/500_exim4-config_hubuser b/debian/debconf/conf.d/router/500_exim4-config_hubuser
new file mode 100644
index 0000000..1884b21
--- /dev/null
+++ b/debian/debconf/conf.d/router/500_exim4-config_hubuser
@@ -0,0 +1,31 @@
+
+### router/500_exim4-config_hubuser
+#################################
+
+.ifdef DCconfig_satellite
+# This router is only used for configtype=satellite.
+# It takes care to route all mail targeted to <somelocaluser@this.machine>
+# to the host where we read our mail
+#
+hub_user:
+ debug_print = "R: hub_user for $local_part@$domain"
+ driver = redirect
+ domains = +local_domains
+ data = ${local_part}@DCreadhost
+ check_local_user
+
+# Grab the redirected mail and deliver it.
+# This is a duplicate of the smarthost router, needed because
+# DCreadhost might end up as part of +local_domains
+hub_user_smarthost:
+ debug_print = "R: hub_user_smarthost for $local_part@$domain"
+ driver = manualroute
+ domains = DCreadhost
+ transport = remote_smtp_smarthost
+ route_list = * DCsmarthost byname
+ host_find_failed = ignore
+ same_domain_copy_routing = yes
+ check_local_user
+.endif
+
+
diff --git a/debian/debconf/conf.d/router/600_exim4-config_userforward b/debian/debconf/conf.d/router/600_exim4-config_userforward
new file mode 100644
index 0000000..01fc0ba
--- /dev/null
+++ b/debian/debconf/conf.d/router/600_exim4-config_userforward
@@ -0,0 +1,51 @@
+
+### router/600_exim4-config_userforward
+#################################
+
+# This router handles forwarding using traditional .forward files in users'
+# home directories. It also allows mail filtering with a forward file
+# starting with the string "# Exim filter" or "# Sieve filter".
+#
+# The no_verify setting means that this router is skipped when Exim is
+# verifying addresses. Similarly, no_expn means that this router is skipped if
+# Exim is processing an EXPN command.
+#
+# The check_ancestor option means that if the forward file generates an
+# address that is an ancestor of the current one, the current one gets
+# passed on instead. This covers the case where A is aliased to B and B
+# has a .forward file pointing to A.
+#
+# The four transports specified at the end are those that are used when
+# forwarding generates a direct delivery to a directory, or a file, or to a
+# pipe, or sets up an auto-reply, respectively.
+#
+userforward:
+ debug_print = "R: userforward for $local_part@$domain"
+ driver = redirect
+ domains = +local_domains
+ check_local_user
+ file = $home/.forward
+ require_files = $local_part_data:$home/.forward
+ no_verify
+ no_expn
+ check_ancestor
+ allow_filter
+ forbid_smtp_code = true
+ directory_transport = address_directory
+ file_transport = address_file
+ pipe_transport = address_pipe
+ reply_transport = address_reply
+ skip_syntax_errors
+ syntax_errors_to = real-$local_part@$domain
+ syntax_errors_text = \
+ This is an automatically generated message. An error has\n\
+ been found in your .forward file. Details of the error are\n\
+ reported below. While this error persists, you will receive\n\
+ a copy of this message for every message that is addressed\n\
+ to you. If your .forward file is a filter file, or if it is\n\
+ a non-filter file containing no valid forwarding addresses,\n\
+ a copy of each incoming message will be put in your normal\n\
+ mailbox. If a non-filter file contains at least one valid\n\
+ forwarding address, forwarding to the valid addresses will\n\
+ happen, and those will be the only deliveries that occur.
+
diff --git a/debian/debconf/conf.d/router/700_exim4-config_procmail b/debian/debconf/conf.d/router/700_exim4-config_procmail
new file mode 100644
index 0000000..55d4eb6
--- /dev/null
+++ b/debian/debconf/conf.d/router/700_exim4-config_procmail
@@ -0,0 +1,15 @@
+
+procmail:
+ debug_print = "R: procmail for $local_part@$domain"
+ driver = accept
+ domains = +local_domains
+ check_local_user
+ transport = procmail_pipe
+ # emulate OR with "if exists"-expansion
+ require_files = ${local_part_data}:\
+ ${if exists{/etc/procmailrc}\
+ {/etc/procmailrc}{${home}/.procmailrc}}:\
+ +/usr/bin/procmail
+ no_verify
+ no_expn
+
diff --git a/debian/debconf/conf.d/router/800_exim4-config_maildrop b/debian/debconf/conf.d/router/800_exim4-config_maildrop
new file mode 100644
index 0000000..0777f14
--- /dev/null
+++ b/debian/debconf/conf.d/router/800_exim4-config_maildrop
@@ -0,0 +1,14 @@
+
+### router/800_exim4-config_maildrop
+#################################
+
+maildrop:
+ debug_print = "R: maildrop for $local_part@$domain"
+ driver = accept
+ domains = +local_domains
+ check_local_user
+ transport = maildrop_pipe
+ require_files = ${local_part_data}:${home}/.mailfilter:+/usr/bin/maildrop
+ no_verify
+ no_expn
+
diff --git a/debian/debconf/conf.d/router/850_exim4-config_lowuid b/debian/debconf/conf.d/router/850_exim4-config_lowuid
new file mode 100644
index 0000000..43741c6
--- /dev/null
+++ b/debian/debconf/conf.d/router/850_exim4-config_lowuid
@@ -0,0 +1,29 @@
+
+### router/850_exim4-config_lowuid
+#################################
+
+.ifndef FIRST_USER_ACCOUNT_UID
+FIRST_USER_ACCOUNT_UID = 0
+.endif
+
+.ifndef DEFAULT_SYSTEM_ACCOUNT_ALIAS
+DEFAULT_SYSTEM_ACCOUNT_ALIAS = :fail: no mail to system accounts
+.endif
+
+COND_SYSTEM_USER_AND_REMOTE_SUBMITTER = "\
+ ${if and{{! match_ip{$sender_host_address}{:@[]}}\
+ {<{$local_user_uid}{FIRST_USER_ACCOUNT_UID}}}\
+ {1}{0}\
+ }"
+
+lowuid_aliases:
+ debug_print = "R: lowuid_aliases for $local_part@$domain (UID $local_user_uid)"
+ check_local_user
+ driver = redirect
+ allow_fail
+ domains = +local_domains
+ condition = COND_SYSTEM_USER_AND_REMOTE_SUBMITTER
+ data = ${if exists{CONFDIR/lowuid-aliases}\
+ {${lookup{$local_part}lsearch{CONFDIR/lowuid-aliases}\
+ {$value}{DEFAULT_SYSTEM_ACCOUNT_ALIAS}}}\
+ {DEFAULT_SYSTEM_ACCOUNT_ALIAS}}
diff --git a/debian/debconf/conf.d/router/900_exim4-config_local_user b/debian/debconf/conf.d/router/900_exim4-config_local_user
new file mode 100644
index 0000000..423c729
--- /dev/null
+++ b/debian/debconf/conf.d/router/900_exim4-config_local_user
@@ -0,0 +1,15 @@
+
+### router/900_exim4-config_local_user
+#################################
+
+# This router matches local user mailboxes. If the router fails, the error
+# message is "Unknown user".
+
+local_user:
+ debug_print = "R: local_user for $local_part@$domain"
+ driver = accept
+ domains = +local_domains
+ check_local_user
+ local_parts = ! root
+ transport = LOCAL_DELIVERY
+ cannot_route_message = Unknown user
diff --git a/debian/debconf/conf.d/router/mmm_mail4root b/debian/debconf/conf.d/router/mmm_mail4root
new file mode 100644
index 0000000..88017ba
--- /dev/null
+++ b/debian/debconf/conf.d/router/mmm_mail4root
@@ -0,0 +1,17 @@
+
+### router/mmm_mail4root
+#################################
+# deliver mail addressed to root to /var/mail/mail as user mail:mail
+# if it was not redirected in /etc/aliases or by other means
+# Exim cannot deliver as root since 4.24 (FIXED_NEVER_USERS)
+
+mail4root:
+ debug_print = "R: mail4root for $local_part@$domain"
+ driver = redirect
+ domains = +local_domains
+ data = /var/mail/mail
+ file_transport = address_file
+ local_parts = root
+ user = mail
+ group = mail
+
diff --git a/debian/debconf/conf.d/transport/00_exim4-config_header b/debian/debconf/conf.d/transport/00_exim4-config_header
new file mode 100644
index 0000000..48e45da
--- /dev/null
+++ b/debian/debconf/conf.d/transport/00_exim4-config_header
@@ -0,0 +1,13 @@
+
+######################################################################
+# TRANSPORTS CONFIGURATION #
+######################################################################
+# ORDER DOES NOT MATTER #
+# Only one appropriate transport is called for each delivery. #
+######################################################################
+
+# A transport is used only when referenced from a router that successfully
+# handles an address.
+
+begin transports
+
diff --git a/debian/debconf/conf.d/transport/10_exim4-config_transport-macros b/debian/debconf/conf.d/transport/10_exim4-config_transport-macros
new file mode 100644
index 0000000..e185d40
--- /dev/null
+++ b/debian/debconf/conf.d/transport/10_exim4-config_transport-macros
@@ -0,0 +1,20 @@
+
+### transport/10_exim4-config_transport-macros
+#################################
+
+.ifdef HIDE_MAILNAME
+REMOTE_SMTP_HEADERS_REWRITE=*@+local_domains $1@DCreadhost frs : *@ETC_MAILNAME $1@DCreadhost frs
+REMOTE_SMTP_RETURN_PATH=${if match_domain{$sender_address_domain}{+local_domains}{${sender_address_local_part}@DCreadhost}{${if match_domain{$sender_address_domain}{ETC_MAILNAME}{${sender_address_local_part}@DCreadhost}fail}}}
+.endif
+
+.ifdef REMOTE_SMTP_HELO_FROM_DNS
+.ifdef REMOTE_SMTP_HELO_DATA
+REMOTE_SMTP_HELO_DATA==${lookup dnsdb {ptr=$sending_ip_address}{$value}{$primary_hostname}}
+.else
+REMOTE_SMTP_HELO_DATA=${lookup dnsdb {ptr=$sending_ip_address}{$value}{$primary_hostname}}
+.endif
+.endif
+
+.ifndef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
+ REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS = *
+.endif
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_address_file b/debian/debconf/conf.d/transport/30_exim4-config_address_file
new file mode 100644
index 0000000..82b55e2
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_address_file
@@ -0,0 +1,11 @@
+
+# This transport is used for handling deliveries directly to files that are
+# generated by aliasing or forwarding.
+#
+address_file:
+ debug_print = "T: address_file for $local_part@$domain"
+ driver = appendfile
+ delivery_date_add
+ envelope_to_add
+ return_path_add
+
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_address_pipe b/debian/debconf/conf.d/transport/30_exim4-config_address_pipe
new file mode 100644
index 0000000..c5f1828
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_address_pipe
@@ -0,0 +1,10 @@
+
+# This transport is used for handling pipe deliveries generated by
+# .forward files. If the commands fails and produces any output on standard
+# output or standard error streams, the output is returned to the sender
+# of the message as a delivery error.
+address_pipe:
+ debug_print = "T: address_pipe for $local_part@$domain"
+ driver = pipe
+ return_fail_output
+
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_address_reply b/debian/debconf/conf.d/transport/30_exim4-config_address_reply
new file mode 100644
index 0000000..b2b8862
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_address_reply
@@ -0,0 +1,8 @@
+
+# This transport is used for handling autoreplies generated by the filtering
+# option of the userforward router.
+#
+address_reply:
+ debug_print = "T: autoreply for $local_part@$domain"
+ driver = autoreply
+
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_mail_spool b/debian/debconf/conf.d/transport/30_exim4-config_mail_spool
new file mode 100644
index 0000000..98dc64c
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_mail_spool
@@ -0,0 +1,17 @@
+
+### transport/30_exim4-config_mail_spool
+
+# This transport is used for local delivery to user mailboxes in traditional
+# BSD mailbox format.
+#
+mail_spool:
+ debug_print = "T: appendfile for $local_part@$domain"
+ driver = appendfile
+ file = /var/mail/$local_part_data
+ delivery_date_add
+ envelope_to_add
+ return_path_add
+ group = mail
+ mode = 0660
+ mode_fail_narrower = false
+
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_maildir_home b/debian/debconf/conf.d/transport/30_exim4-config_maildir_home
new file mode 100644
index 0000000..a872acc
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_maildir_home
@@ -0,0 +1,41 @@
+
+### transport/30_exim4-config_maildir_home
+#################################
+
+# Use this instead of mail_spool if you want to to deliver to Maildir in
+# home-directory - change the definition of LOCAL_DELIVERY
+#
+maildir_home:
+ debug_print = "T: maildir_home for $local_part@$domain"
+ driver = appendfile
+ .ifdef MAILDIR_HOME_MAILDIR_LOCATION
+ directory = MAILDIR_HOME_MAILDIR_LOCATION
+ .else
+ directory = $home/Maildir
+ .endif
+ .ifdef MAILDIR_HOME_CREATE_DIRECTORY
+ create_directory
+ .endif
+ .ifdef MAILDIR_HOME_CREATE_FILE
+ create_file = MAILDIR_HOME_CREATE_FILE
+ .endif
+ delivery_date_add
+ envelope_to_add
+ return_path_add
+ maildir_format
+ .ifdef MAILDIR_HOME_DIRECTORY_MODE
+ directory_mode = MAILDIR_HOME_DIRECTORY_MODE
+ .else
+ directory_mode = 0700
+ .endif
+ .ifdef MAILDIR_HOME_MODE
+ mode = MAILDIR_HOME_MODE
+ .else
+ mode = 0600
+ .endif
+ mode_fail_narrower = false
+ # This transport always chdirs to $home before trying to deliver. If
+ # $home is not accessible, this chdir fails and prevents delivery.
+ # If you are in a setup where home directories might not be
+ # accessible, uncomment the current_directory line below.
+ # current_directory = /
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_maildrop_pipe b/debian/debconf/conf.d/transport/30_exim4-config_maildrop_pipe
new file mode 100644
index 0000000..3bd8924
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_maildrop_pipe
@@ -0,0 +1,12 @@
+
+maildrop_pipe:
+ debug_print = "T: maildrop_pipe for $local_part@$domain"
+ driver = pipe
+ path = "/bin:/usr/bin:/usr/local/bin"
+ command = "/usr/bin/maildrop"
+ message_prefix =
+ message_suffix =
+ return_path_add
+ delivery_date_add
+ envelope_to_add
+
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_procmail_pipe b/debian/debconf/conf.d/transport/30_exim4-config_procmail_pipe
new file mode 100644
index 0000000..5fb03ff
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_procmail_pipe
@@ -0,0 +1,10 @@
+
+procmail_pipe:
+ debug_print = "T: procmail_pipe for $local_part@$domain"
+ driver = pipe
+ path = "/bin:/usr/bin:/usr/local/bin"
+ command = "/usr/bin/procmail"
+ return_path_add
+ delivery_date_add
+ envelope_to_add
+
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_remote_smtp b/debian/debconf/conf.d/transport/30_exim4-config_remote_smtp
new file mode 100644
index 0000000..fcb4f84
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_remote_smtp
@@ -0,0 +1,65 @@
+### transport/30_exim4-config_remote_smtp
+#################################
+# This transport is used for delivering messages over SMTP connections.
+
+remote_smtp:
+ debug_print = "T: remote_smtp for $local_part@$domain"
+ driver = smtp
+.ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
+ hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
+.endif
+.ifdef REMOTE_SMTP_HEADERS_REWRITE
+ headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
+.endif
+.ifdef REMOTE_SMTP_RETURN_PATH
+ return_path = REMOTE_SMTP_RETURN_PATH
+.endif
+.ifdef REMOTE_SMTP_HELO_DATA
+ helo_data=REMOTE_SMTP_HELO_DATA
+.endif
+.ifdef REMOTE_SMTP_INTERFACE
+ interface = REMOTE_SMTP_INTERFACE
+.endif
+.ifdef DKIM_DOMAIN
+dkim_domain = DKIM_DOMAIN
+.endif
+.ifdef DKIM_IDENTITY
+dkim_identity = DKIM_IDENTITY
+.endif
+.ifdef DKIM_SELECTOR
+dkim_selector = DKIM_SELECTOR
+.endif
+.ifdef DKIM_PRIVATE_KEY
+dkim_private_key = DKIM_PRIVATE_KEY
+.endif
+.ifdef DKIM_CANON
+dkim_canon = DKIM_CANON
+.endif
+.ifdef DKIM_STRICT
+dkim_strict = DKIM_STRICT
+.endif
+.ifdef DKIM_SIGN_HEADERS
+dkim_sign_headers = DKIM_SIGN_HEADERS
+.endif
+.ifdef DKIM_TIMESTAMPS
+dkim_timestamps = DKIM_TIMESTAMPS
+.endif
+.ifdef TLS_DH_MIN_BITS
+tls_dh_min_bits = TLS_DH_MIN_BITS
+.endif
+.ifdef REMOTE_SMTP_TLS_CERTIFICATE
+tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
+.endif
+.ifdef REMOTE_SMTP_PRIVATEKEY
+tls_privatekey = REMOTE_SMTP_PRIVATEKEY
+.endif
+.ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
+ hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
+.endif
+.ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
+ headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
+.endif
+.ifdef IGNORE_SMTP_LINE_LENGTH_LIMIT
+# If overlong mails are accepted on incoming mail send them out, too.
+ message_linelength_limit = 1G
+.endif
diff --git a/debian/debconf/conf.d/transport/30_exim4-config_remote_smtp_smarthost b/debian/debconf/conf.d/transport/30_exim4-config_remote_smtp_smarthost
new file mode 100644
index 0000000..2c16af8
--- /dev/null
+++ b/debian/debconf/conf.d/transport/30_exim4-config_remote_smtp_smarthost
@@ -0,0 +1,58 @@
+
+### transport/30_exim4-config_remote_smtp_smarthost
+#################################
+
+# This transport is used for delivering messages over SMTP connections
+# to a smarthost. The local host tries to authenticate.
+# This transport is used for smarthost and satellite configurations.
+
+remote_smtp_smarthost:
+ debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
+ driver = smtp
+ multi_domain
+ hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
+ {\
+ ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
+ }\
+ {} \
+ }
+.ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
+ hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
+.endif
+.ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
+ hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
+.endif
+.ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
+ tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
+.endif
+.ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
+ tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
+.endif
+.ifdef REMOTE_SMTP_HEADERS_REWRITE
+ headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
+.endif
+.ifdef REMOTE_SMTP_RETURN_PATH
+ return_path = REMOTE_SMTP_RETURN_PATH
+.endif
+.ifdef REMOTE_SMTP_HELO_DATA
+ helo_data=REMOTE_SMTP_HELO_DATA
+.endif
+.ifdef TLS_DH_MIN_BITS
+tls_dh_min_bits = TLS_DH_MIN_BITS
+.endif
+.ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
+tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
+.endif
+.ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
+tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
+.endif
+.ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
+ headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
+.endif
+.ifdef IGNORE_SMTP_LINE_LENGTH_LIMIT
+# If overlong mails are accepted on incoming mail send them out, too.
+ message_linelength_limit = 1G
+.endif
+.ifdef REMOTE_SMTP_SMARTHOST_PROTOCOL
+ protocol = REMOTE_SMTP_SMARTHOST_PROTOCOL
+.endif
diff --git a/debian/debconf/conf.d/transport/35_exim4-config_address_directory b/debian/debconf/conf.d/transport/35_exim4-config_address_directory
new file mode 100644
index 0000000..6861426
--- /dev/null
+++ b/debian/debconf/conf.d/transport/35_exim4-config_address_directory
@@ -0,0 +1,14 @@
+# This transport is used for handling file addresses generated by alias
+# or .forward files if the path ends in "/", which causes it to be treated
+# as a directory name rather than a file name.
+
+address_directory:
+ debug_print = "T: address_directory for $local_part@$domain"
+ driver = appendfile
+ delivery_date_add
+ envelope_to_add
+ return_path_add
+ check_string = ""
+ escape_string = ""
+ maildir_format
+