summaryrefslogtreecommitdiffstats
path: root/html/cleanup.8.html
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--html/cleanup.8.html558
1 files changed, 558 insertions, 0 deletions
diff --git a/html/cleanup.8.html b/html/cleanup.8.html
new file mode 100644
index 0000000..756b512
--- /dev/null
+++ b/html/cleanup.8.html
@@ -0,0 +1,558 @@
+<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN"
+ "http://www.w3.org/TR/html4/loose.dtd">
+<html> <head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+<title> Postfix manual - cleanup(8) </title>
+</head> <body> <pre>
+CLEANUP(8) CLEANUP(8)
+
+<b>NAME</b>
+ cleanup - canonicalize and enqueue Postfix message
+
+<b>SYNOPSIS</b>
+ <b>cleanup</b> [generic Postfix daemon options]
+
+<b>DESCRIPTION</b>
+ The <a href="cleanup.8.html"><b>cleanup</b>(8)</a> daemon processes inbound mail, inserts it into the
+ <b>incoming</b> mail queue, and informs the queue manager of its arrival.
+
+ The <a href="cleanup.8.html"><b>cleanup</b>(8)</a> daemon performs the following transformations:
+
+ <b>o</b> Insert missing message headers: (<b>Resent-</b>) <b>From:</b>, <b>To:</b>, <b>Mes-</b>
+ <b>sage-Id:</b>, and <b>Date:</b>.
+ This is enabled with the <b><a href="postconf.5.html#local_header_rewrite_clients">local_header_rewrite_clients</a></b> and
+ <b><a href="postconf.5.html#always_add_missing_headers">always_add_missing_headers</a></b> parameter settings.
+
+ <b>o</b> Transform envelope and header addresses to the standard
+ <i>user@fully-qualified-domain</i> form that is expected by other Post-
+ fix programs. This task depends on the <a href="trivial-rewrite.8.html"><b>trivial-rewrite</b>(8)</a> dae-
+ mon.
+ The header transformation is enabled with the <b><a href="postconf.5.html#local_header_rewrite_clients">local_header_re</a>-</b>
+ <b><a href="postconf.5.html#local_header_rewrite_clients">write_clients</a></b> parameter setting.
+
+ <b>o</b> Eliminate duplicate envelope recipient addresses.
+ This is enabled with the <b><a href="postconf.5.html#duplicate_filter_limit">duplicate_filter_limit</a></b> parameter set-
+ ting.
+
+ <b>o</b> Remove message headers: <b>Bcc</b>, <b>Content-Length</b>, <b>Resent-Bcc</b>,
+ <b>Return-Path</b>.
+ This is enabled with the <a href="postconf.5.html#message_drop_headers">message_drop_headers</a> parameter setting.
+
+ <b>o</b> Optionally, rewrite all envelope and header addresses according
+ to the mappings specified in the <a href="canonical.5.html"><b>canonical</b>(5)</a> lookup tables.
+ The header transformation is enabled with the <b><a href="postconf.5.html#local_header_rewrite_clients">local_header_re</a>-</b>
+ <b><a href="postconf.5.html#local_header_rewrite_clients">write_clients</a></b> parameter setting.
+
+ <b>o</b> Optionally, masquerade envelope sender addresses and message
+ header addresses (i.e. strip host or domain information below
+ all domains listed in the <b><a href="postconf.5.html#masquerade_domains">masquerade_domains</a></b> parameter, except
+ for user names listed in <b><a href="postconf.5.html#masquerade_exceptions">masquerade_exceptions</a></b>). By default,
+ address masquerading does not affect envelope recipients.
+ The header transformation is enabled with the <b><a href="postconf.5.html#local_header_rewrite_clients">local_header_re</a>-</b>
+ <b><a href="postconf.5.html#local_header_rewrite_clients">write_clients</a></b> parameter setting.
+
+ <b>o</b> Optionally, expand envelope recipients according to information
+ found in the <b><a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a></b> lookup tables.
+
+ The <a href="cleanup.8.html"><b>cleanup</b>(8)</a> daemon performs sanity checks on the content of each
+ message. When it finds a problem, by default it returns a diagnostic
+ status to the cleanup service client, and leaves it up to the client to
+ deal with the problem. Alternatively, the client can request the
+ <a href="cleanup.8.html"><b>cleanup</b>(8)</a> daemon to bounce the message back to the sender in case of
+ trouble.
+
+<b>STANDARDS</b>
+ <a href="https://tools.ietf.org/html/rfc822">RFC 822</a> (ARPA Internet Text Messages)
+ <a href="https://tools.ietf.org/html/rfc2045">RFC 2045</a> (MIME: Format of Internet Message Bodies)
+ <a href="https://tools.ietf.org/html/rfc2046">RFC 2046</a> (MIME: Media Types)
+ <a href="https://tools.ietf.org/html/rfc2822">RFC 2822</a> (Internet Message Format)
+ <a href="https://tools.ietf.org/html/rfc3463">RFC 3463</a> (Enhanced Status Codes)
+ <a href="https://tools.ietf.org/html/rfc3464">RFC 3464</a> (Delivery status notifications)
+ <a href="https://tools.ietf.org/html/rfc5322">RFC 5322</a> (Internet Message Format)
+
+<b>DIAGNOSTICS</b>
+ Problems and transactions are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>.
+
+<b>BUGS</b>
+ Table-driven rewriting rules make it hard to express <b>if then else</b> and
+ other logical relationships.
+
+<b>CONFIGURATION PARAMETERS</b>
+ Changes to <a href="postconf.5.html"><b>main.cf</b></a> are picked up automatically, as <a href="cleanup.8.html"><b>cleanup</b>(8)</a> processes
+ run for only a limited amount of time. Use the command "<b>postfix reload</b>"
+ to speed up a change.
+
+ The text below provides only a parameter summary. See <a href="postconf.5.html"><b>postconf</b>(5)</a> for
+ more details including examples.
+
+<b>COMPATIBILITY CONTROLS</b>
+ <b><a href="postconf.5.html#undisclosed_recipients_header">undisclosed_recipients_header</a> (see 'postconf -d' output)</b>
+ Message header that the Postfix <a href="cleanup.8.html"><b>cleanup</b>(8)</a> server inserts when a
+ message contains no To: or Cc: message header.
+
+ Available in Postfix version 2.1 only:
+
+ <b><a href="postconf.5.html#enable_errors_to">enable_errors_to</a> (no)</b>
+ Report mail delivery errors to the address specified with the
+ non-standard Errors-To: message header, instead of the envelope
+ sender address (this feature is removed with Postfix version
+ 2.2, is turned off by default with Postfix version 2.1, and is
+ always turned on with older Postfix versions).
+
+ Available in Postfix version 2.6 and later:
+
+ <b><a href="postconf.5.html#always_add_missing_headers">always_add_missing_headers</a> (no)</b>
+ Always add (Resent-) From:, To:, Date: or Message-ID: headers
+ when not present.
+
+ Available in Postfix version 2.9 and later:
+
+ <b><a href="postconf.5.html#enable_long_queue_ids">enable_long_queue_ids</a> (no)</b>
+ Enable long, non-repeating, queue IDs (queue file names).
+
+ Available in Postfix version 3.0 and later:
+
+ <b><a href="postconf.5.html#message_drop_headers">message_drop_headers</a> (bcc, content-length, resent-bcc, return-path)</b>
+ Names of message headers that the <a href="cleanup.8.html"><b>cleanup</b>(8)</a> daemon will remove
+ after applying <a href="header_checks.5.html"><b>header_checks</b>(5)</a> and before invoking Milter
+ applications.
+
+ <b><a href="postconf.5.html#header_from_format">header_from_format</a> (standard)</b>
+ The format of the Postfix-generated <b>From:</b> header.
+
+<b>BUILT-IN CONTENT FILTERING CONTROLS</b>
+ Postfix built-in content filtering is meant to stop a flood of worms or
+ viruses. It is not a general content filter.
+
+ <b><a href="postconf.5.html#body_checks">body_checks</a> (empty)</b>
+ Optional lookup tables for content inspection as specified in
+ the <a href="header_checks.5.html"><b>body_checks</b>(5)</a> manual page.
+
+ <b><a href="postconf.5.html#header_checks">header_checks</a> (empty)</b>
+ Optional lookup tables for content inspection of primary
+ non-MIME message headers, as specified in the <a href="header_checks.5.html"><b>header_checks</b>(5)</a>
+ manual page.
+
+ Available in Postfix version 2.0 and later:
+
+ <b><a href="postconf.5.html#body_checks_size_limit">body_checks_size_limit</a> (51200)</b>
+ How much text in a message body segment (or attachment, if you
+ prefer to use that term) is subjected to <a href="postconf.5.html#body_checks">body_checks</a> inspection.
+
+ <b><a href="postconf.5.html#mime_header_checks">mime_header_checks</a> ($<a href="postconf.5.html#header_checks">header_checks</a>)</b>
+ Optional lookup tables for content inspection of MIME related
+ message headers, as described in the <a href="header_checks.5.html"><b>header_checks</b>(5)</a> manual
+ page.
+
+ <b><a href="postconf.5.html#nested_header_checks">nested_header_checks</a> ($<a href="postconf.5.html#header_checks">header_checks</a>)</b>
+ Optional lookup tables for content inspection of non-MIME mes-
+ sage headers in attached messages, as described in the
+ <a href="header_checks.5.html"><b>header_checks</b>(5)</a> manual page.
+
+ Available in Postfix version 2.3 and later:
+
+ <b><a href="postconf.5.html#message_reject_characters">message_reject_characters</a> (empty)</b>
+ The set of characters that Postfix will reject in message con-
+ tent.
+
+ <b><a href="postconf.5.html#message_strip_characters">message_strip_characters</a> (empty)</b>
+ The set of characters that Postfix will remove from message con-
+ tent.
+
+ Available in Postfix version 3.9, 3.8.5, 3.7.10, 3.6.14, 3.5.24, and
+ later:
+
+ <b><a href="postconf.5.html#cleanup_replace_stray_cr_lf">cleanup_replace_stray_cr_lf</a> (yes)</b>
+ Replace each stray &lt;CR&gt; or &lt;LF&gt; character in message content
+ with a space character, to prevent outbound SMTP smuggling, and
+ to make the evaluation of Postfix-added DKIM or other signatures
+ independent from how a remote mail server handles such charac-
+ ters.
+
+<b>BEFORE QUEUE MILTER CONTROLS</b>
+ As of version 2.3, Postfix supports the Sendmail version 8 Milter (mail
+ filter) protocol. When mail is not received via the <a href="smtpd.8.html">smtpd(8)</a> server,
+ the <a href="cleanup.8.html">cleanup(8)</a> server will simulate SMTP events to the extent that this
+ is possible. For details see the <a href="MILTER_README.html">MILTER_README</a> document.
+
+ <b><a href="postconf.5.html#non_smtpd_milters">non_smtpd_milters</a> (empty)</b>
+ A list of Milter (mail filter) applications for new mail that
+ does not arrive via the Postfix <a href="smtpd.8.html"><b>smtpd</b>(8)</a> server.
+
+ <b><a href="postconf.5.html#milter_protocol">milter_protocol</a> (6)</b>
+ The mail filter protocol version and optional protocol exten-
+ sions for communication with a Milter application; prior to
+ Postfix 2.6 the default protocol is 2.
+
+ <b><a href="postconf.5.html#milter_default_action">milter_default_action</a> (tempfail)</b>
+ The default action when a Milter (mail filter) response is
+ unavailable (for example, bad Postfix configuration or Milter
+ failure).
+
+ <b><a href="postconf.5.html#milter_macro_daemon_name">milter_macro_daemon_name</a> ($<a href="postconf.5.html#myhostname">myhostname</a>)</b>
+ The {daemon_name} macro value for Milter (mail filter) applica-
+ tions.
+
+ <b><a href="postconf.5.html#milter_macro_v">milter_macro_v</a> ($<a href="postconf.5.html#mail_name">mail_name</a> $<a href="postconf.5.html#mail_version">mail_version</a>)</b>
+ The {v} macro value for Milter (mail filter) applications.
+
+ <b><a href="postconf.5.html#milter_connect_timeout">milter_connect_timeout</a> (30s)</b>
+ The time limit for connecting to a Milter (mail filter) applica-
+ tion, and for negotiating protocol options.
+
+ <b><a href="postconf.5.html#milter_command_timeout">milter_command_timeout</a> (30s)</b>
+ The time limit for sending an SMTP command to a Milter (mail
+ filter) application, and for receiving the response.
+
+ <b><a href="postconf.5.html#milter_content_timeout">milter_content_timeout</a> (300s)</b>
+ The time limit for sending message content to a Milter (mail
+ filter) application, and for receiving the response.
+
+ <b><a href="postconf.5.html#milter_connect_macros">milter_connect_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to Milter (mail filter) applications
+ after completion of an SMTP connection.
+
+ <b><a href="postconf.5.html#milter_helo_macros">milter_helo_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to Milter (mail filter) applications
+ after the SMTP HELO or EHLO command.
+
+ <b><a href="postconf.5.html#milter_mail_macros">milter_mail_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to Milter (mail filter) applications
+ after the SMTP MAIL FROM command.
+
+ <b><a href="postconf.5.html#milter_rcpt_macros">milter_rcpt_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to Milter (mail filter) applications
+ after the SMTP RCPT TO command.
+
+ <b><a href="postconf.5.html#milter_data_macros">milter_data_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to version 4 or higher Milter (mail
+ filter) applications after the SMTP DATA command.
+
+ <b><a href="postconf.5.html#milter_unknown_command_macros">milter_unknown_command_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to version 3 or higher Milter (mail
+ filter) applications after an unknown SMTP command.
+
+ <b><a href="postconf.5.html#milter_end_of_data_macros">milter_end_of_data_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to Milter (mail filter) applications
+ after the message end-of-data.
+
+ Available in Postfix version 2.5 and later:
+
+ <b><a href="postconf.5.html#milter_end_of_header_macros">milter_end_of_header_macros</a> (see 'postconf -d' output)</b>
+ The macros that are sent to Milter (mail filter) applications
+ after the end of the message header.
+
+ Available in Postfix version 2.7 and later:
+
+ <b><a href="postconf.5.html#milter_header_checks">milter_header_checks</a> (empty)</b>
+ Optional lookup tables for content inspection of message headers
+ that are produced by Milter applications.
+
+ Available in Postfix version 3.1 and later:
+
+ <b><a href="postconf.5.html#milter_macro_defaults">milter_macro_defaults</a> (empty)</b>
+ Optional list of <i>name=value</i> pairs that specify default values
+ for arbitrary macros that Postfix may send to Milter applica-
+ tions.
+
+<b>MIME PROCESSING CONTROLS</b>
+ Available in Postfix version 2.0 and later:
+
+ <b><a href="postconf.5.html#disable_mime_input_processing">disable_mime_input_processing</a> (no)</b>
+ Turn off MIME processing while receiving mail.
+
+ <b><a href="postconf.5.html#mime_boundary_length_limit">mime_boundary_length_limit</a> (2048)</b>
+ The maximal length of MIME multipart boundary strings.
+
+ <b><a href="postconf.5.html#mime_nesting_limit">mime_nesting_limit</a> (100)</b>
+ The maximal recursion level that the MIME processor will handle.
+
+ <b><a href="postconf.5.html#strict_8bitmime">strict_8bitmime</a> (no)</b>
+ Enable both <a href="postconf.5.html#strict_7bit_headers">strict_7bit_headers</a> and <a href="postconf.5.html#strict_8bitmime_body">strict_8bitmime_body</a>.
+
+ <b><a href="postconf.5.html#strict_7bit_headers">strict_7bit_headers</a> (no)</b>
+ Reject mail with 8-bit text in message headers.
+
+ <b><a href="postconf.5.html#strict_8bitmime_body">strict_8bitmime_body</a> (no)</b>
+ Reject 8-bit message body text without 8-bit MIME content encod-
+ ing information.
+
+ <b><a href="postconf.5.html#strict_mime_encoding_domain">strict_mime_encoding_domain</a> (no)</b>
+ Reject mail with invalid Content-Transfer-Encoding: information
+ for the message/* or multipart/* MIME content types.
+
+ Available in Postfix version 2.5 and later:
+
+ <b><a href="postconf.5.html#detect_8bit_encoding_header">detect_8bit_encoding_header</a> (yes)</b>
+ Automatically detect 8BITMIME body content by looking at Con-
+ tent-Transfer-Encoding: message headers; historically, this
+ behavior was hard-coded to be "always on".
+
+<b>AUTOMATIC BCC RECIPIENT CONTROLS</b>
+ Postfix can automatically add BCC (blind carbon copy) when mail enters
+ the mail system:
+
+ <b><a href="postconf.5.html#always_bcc">always_bcc</a> (empty)</b>
+ Optional address that receives a "blind carbon copy" of each
+ message that is received by the Postfix mail system.
+
+ Available in Postfix version 2.1 and later:
+
+ <b><a href="postconf.5.html#sender_bcc_maps">sender_bcc_maps</a> (empty)</b>
+ Optional BCC (blind carbon-copy) address lookup tables, indexed
+ by sender address.
+
+ <b><a href="postconf.5.html#recipient_bcc_maps">recipient_bcc_maps</a> (empty)</b>
+ Optional BCC (blind carbon-copy) address lookup tables, indexed
+ by recipient address.
+
+<b>ADDRESS TRANSFORMATION CONTROLS</b>
+ Address rewriting is delegated to the <a href="trivial-rewrite.8.html"><b>trivial-rewrite</b>(8)</a> daemon. The
+ <a href="cleanup.8.html"><b>cleanup</b>(8)</a> server implements table driven address mapping.
+
+ <b><a href="postconf.5.html#empty_address_recipient">empty_address_recipient</a> (MAILER-DAEMON)</b>
+ The recipient of mail addressed to the null address.
+
+ <b><a href="postconf.5.html#canonical_maps">canonical_maps</a> (empty)</b>
+ Optional address mapping lookup tables for message headers and
+ envelopes.
+
+ <b><a href="postconf.5.html#recipient_canonical_maps">recipient_canonical_maps</a> (empty)</b>
+ Optional address mapping lookup tables for envelope and header
+ recipient addresses.
+
+ <b><a href="postconf.5.html#sender_canonical_maps">sender_canonical_maps</a> (empty)</b>
+ Optional address mapping lookup tables for envelope and header
+ sender addresses.
+
+ <b><a href="postconf.5.html#masquerade_classes">masquerade_classes</a> (envelope_sender, header_sender, header_recipient)</b>
+ What addresses are subject to address masquerading.
+
+ <b><a href="postconf.5.html#masquerade_domains">masquerade_domains</a> (empty)</b>
+ Optional list of domains whose subdomain structure will be
+ stripped off in email addresses.
+
+ <b><a href="postconf.5.html#masquerade_exceptions">masquerade_exceptions</a> (empty)</b>
+ Optional list of user names that are not subjected to address
+ masquerading, even when their addresses match $<a href="postconf.5.html#masquerade_domains">masquer</a>-
+ <a href="postconf.5.html#masquerade_domains">ade_domains</a>.
+
+ <b><a href="postconf.5.html#propagate_unmatched_extensions">propagate_unmatched_extensions</a> (canonical, virtual)</b>
+ What address lookup tables copy an address extension from the
+ lookup key to the lookup result.
+
+ Available before Postfix version 2.0:
+
+ <b><a href="postconf.5.html#virtual_maps">virtual_maps</a> (empty)</b>
+ Optional lookup tables with a) names of domains for which all
+ addresses are aliased to addresses in other local or remote
+ domains, and b) addresses that are aliased to addresses in other
+ local or remote domains.
+
+ Available in Postfix version 2.0 and later:
+
+ <b><a href="postconf.5.html#virtual_alias_maps">virtual_alias_maps</a> ($<a href="postconf.5.html#virtual_maps">virtual_maps</a>)</b>
+ Optional lookup tables that alias specific mail addresses or
+ domains to other local or remote address.
+
+ Available in Postfix version 2.2 and later:
+
+ <b><a href="postconf.5.html#canonical_classes">canonical_classes</a> (envelope_sender, envelope_recipient, header_sender,</b>
+ <b>header_recipient)</b>
+ What addresses are subject to <a href="postconf.5.html#canonical_maps">canonical_maps</a> address mapping.
+
+ <b><a href="postconf.5.html#recipient_canonical_classes">recipient_canonical_classes</a> (envelope_recipient, header_recipient)</b>
+ What addresses are subject to <a href="postconf.5.html#recipient_canonical_maps">recipient_canonical_maps</a> address
+ mapping.
+
+ <b><a href="postconf.5.html#sender_canonical_classes">sender_canonical_classes</a> (envelope_sender, header_sender)</b>
+ What addresses are subject to <a href="postconf.5.html#sender_canonical_maps">sender_canonical_maps</a> address map-
+ ping.
+
+ <b><a href="postconf.5.html#remote_header_rewrite_domain">remote_header_rewrite_domain</a> (empty)</b>
+ Don't rewrite message headers from remote clients at all when
+ this parameter is empty; otherwise, rewrite message headers and
+ append the specified domain name to incomplete addresses.
+
+<b>RESOURCE AND RATE CONTROLS</b>
+ <b><a href="postconf.5.html#duplicate_filter_limit">duplicate_filter_limit</a> (1000)</b>
+ The maximal number of addresses remembered by the address dupli-
+ cate filter for <a href="aliases.5.html"><b>aliases</b>(5)</a> or <a href="virtual.5.html"><b>virtual</b>(5)</a> alias expansion, or for
+ <a href="showq.8.html"><b>showq</b>(8)</a> queue displays.
+
+ <b><a href="postconf.5.html#header_size_limit">header_size_limit</a> (102400)</b>
+ The maximal amount of memory in bytes for storing a message
+ header.
+
+ <b><a href="postconf.5.html#hopcount_limit">hopcount_limit</a> (50)</b>
+ The maximal number of Received: message headers that is allowed
+ in the primary message headers.
+
+ <b><a href="postconf.5.html#in_flow_delay">in_flow_delay</a> (1s)</b>
+ Time to pause before accepting a new message, when the message
+ arrival rate exceeds the message delivery rate.
+
+ <b><a href="postconf.5.html#message_size_limit">message_size_limit</a> (10240000)</b>
+ The maximal size in bytes of a message, including envelope
+ information.
+
+ Available in Postfix version 2.0 and later:
+
+ <b><a href="postconf.5.html#header_address_token_limit">header_address_token_limit</a> (10240)</b>
+ The maximal number of address tokens are allowed in an address
+ message header.
+
+ <b><a href="postconf.5.html#mime_boundary_length_limit">mime_boundary_length_limit</a> (2048)</b>
+ The maximal length of MIME multipart boundary strings.
+
+ <b><a href="postconf.5.html#mime_nesting_limit">mime_nesting_limit</a> (100)</b>
+ The maximal recursion level that the MIME processor will handle.
+
+ <b><a href="postconf.5.html#queue_file_attribute_count_limit">queue_file_attribute_count_limit</a> (100)</b>
+ The maximal number of (name=value) attributes that may be stored
+ in a Postfix queue file.
+
+ Available in Postfix version 2.1 and later:
+
+ <b><a href="postconf.5.html#virtual_alias_expansion_limit">virtual_alias_expansion_limit</a> (1000)</b>
+ The maximal number of addresses that virtual alias expansion
+ produces from each original recipient.
+
+ <b><a href="postconf.5.html#virtual_alias_recursion_limit">virtual_alias_recursion_limit</a> (1000)</b>
+ The maximal nesting depth of virtual alias expansion.
+
+ Available in Postfix version 3.0 and later:
+
+ <b><a href="postconf.5.html#virtual_alias_address_length_limit">virtual_alias_address_length_limit</a> (1000)</b>
+ The maximal length of an email address after virtual alias
+ expansion.
+
+<b>SMTPUTF8 CONTROLS</b>
+ Preliminary SMTPUTF8 support is introduced with Postfix 3.0.
+
+ <b><a href="postconf.5.html#smtputf8_enable">smtputf8_enable</a> (yes)</b>
+ Enable preliminary SMTPUTF8 support for the protocols described
+ in <a href="https://tools.ietf.org/html/rfc6531">RFC 6531</a>..6533.
+
+ <b><a href="postconf.5.html#smtputf8_autodetect_classes">smtputf8_autodetect_classes</a> (sendmail, verify)</b>
+ Detect that a message requires SMTPUTF8 support for the speci-
+ fied mail origin classes.
+
+ Available in Postfix version 3.2 and later:
+
+ <b><a href="postconf.5.html#enable_idna2003_compatibility">enable_idna2003_compatibility</a> (no)</b>
+ Enable 'transitional' compatibility between IDNA2003 and
+ IDNA2008, when converting UTF-8 domain names to/from the ASCII
+ form that is used for DNS lookups.
+
+<b>MISCELLANEOUS CONTROLS</b>
+ <b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b>
+ The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con-
+ figuration files.
+
+ <b><a href="postconf.5.html#daemon_timeout">daemon_timeout</a> (18000s)</b>
+ How much time a Postfix daemon process may take to handle a
+ request before it is terminated by a built-in watchdog timer.
+
+ <b><a href="postconf.5.html#delay_logging_resolution_limit">delay_logging_resolution_limit</a> (2)</b>
+ The maximal number of digits after the decimal point when log-
+ ging sub-second delay values.
+
+ <b><a href="postconf.5.html#delay_warning_time">delay_warning_time</a> (0h)</b>
+ The time after which the sender receives a copy of the message
+ headers of mail that is still queued.
+
+ <b><a href="postconf.5.html#ipc_timeout">ipc_timeout</a> (3600s)</b>
+ The time limit for sending or receiving information over an
+ internal communication channel.
+
+ <b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b>
+ The maximum amount of time that an idle Postfix daemon process
+ waits for an incoming connection before terminating voluntarily.
+
+ <b><a href="postconf.5.html#max_use">max_use</a> (100)</b>
+ The maximal number of incoming connections that a Postfix daemon
+ process will service before terminating voluntarily.
+
+ <b><a href="postconf.5.html#myhostname">myhostname</a> (see 'postconf -d' output)</b>
+ The internet hostname of this mail system.
+
+ <b><a href="postconf.5.html#myorigin">myorigin</a> ($<a href="postconf.5.html#myhostname">myhostname</a>)</b>
+ The domain name that locally-posted mail appears to come from,
+ and that locally posted mail is delivered to.
+
+ <b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b>
+ The process ID of a Postfix command or daemon process.
+
+ <b><a href="postconf.5.html#process_name">process_name</a> (read-only)</b>
+ The process name of a Postfix command or daemon process.
+
+ <b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b>
+ The location of the Postfix top-level queue directory.
+
+ <b><a href="postconf.5.html#soft_bounce">soft_bounce</a> (no)</b>
+ Safety net to keep mail queued that would otherwise be returned
+ to the sender.
+
+ <b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b>
+ The syslog facility of Postfix logging.
+
+ <b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b>
+ A prefix that is prepended to the process name in syslog
+ records, so that, for example, "smtpd" becomes "prefix/smtpd".
+
+ Available in Postfix version 2.1 and later:
+
+ <b><a href="postconf.5.html#enable_original_recipient">enable_original_recipient</a> (yes)</b>
+ Enable support for the original recipient address after an
+ address is rewritten to a different address (for example with
+ aliasing or with canonical mapping).
+
+ Available in Postfix 3.3 and later:
+
+ <b><a href="postconf.5.html#service_name">service_name</a> (read-only)</b>
+ The <a href="master.5.html">master.cf</a> service name of a Postfix daemon process.
+
+ Available in Postfix 3.5 and later:
+
+ <b><a href="postconf.5.html#info_log_address_format">info_log_address_format</a> (external)</b>
+ The email address form that will be used in non-debug logging
+ (info, warning, etc.).
+
+<b>FILES</b>
+ /etc/postfix/canonical*, canonical mapping table
+ /etc/postfix/virtual*, virtual mapping table
+
+<b>SEE ALSO</b>
+ <a href="trivial-rewrite.8.html">trivial-rewrite(8)</a>, address rewriting
+ <a href="qmgr.8.html">qmgr(8)</a>, queue manager
+ <a href="header_checks.5.html">header_checks(5)</a>, message header content inspection
+ <a href="header_checks.5.html">body_checks(5)</a>, body parts content inspection
+ <a href="canonical.5.html">canonical(5)</a>, canonical address lookup table format
+ <a href="virtual.5.html">virtual(5)</a>, virtual alias lookup table format
+ <a href="postconf.5.html">postconf(5)</a>, configuration parameters
+ <a href="master.5.html">master(5)</a>, generic daemon options
+ <a href="master.8.html">master(8)</a>, process manager
+ <a href="postlogd.8.html">postlogd(8)</a>, Postfix logging
+ syslogd(8), system logging
+
+<b>README FILES</b>
+ <a href="ADDRESS_REWRITING_README.html">ADDRESS_REWRITING_README</a> Postfix address manipulation
+ <a href="CONTENT_INSPECTION_README.html">CONTENT_INSPECTION_README</a> content inspection
+
+<b>LICENSE</b>
+ The Secure Mailer license must be distributed with this software.
+
+<b>AUTHOR(S)</b>
+ Wietse Venema
+ IBM T.J. Watson Research
+ P.O. Box 704
+ Yorktown Heights, NY 10598, USA
+
+ Wietse Venema
+ Google, Inc.
+ 111 8th Avenue
+ New York, NY 10011, USA
+
+ CLEANUP(8)
+</pre> </body> </html>