199 lines
10 KiB
HTML
199 lines
10 KiB
HTML
<!doctype html public "-//W3C//DTD HTML 4.01 Transitional//EN"
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"https://www.w3.org/TR/html4/loose.dtd">
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<html> <head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link rel='stylesheet' type='text/css' href='postfix-doc.css'>
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<title> Postfix manual - qmqpd(8) </title>
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</head> <body> <pre>
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QMQPD(8) QMQPD(8)
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<b><a name="name">NAME</a></b>
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qmqpd - Postfix QMQP server
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<b><a name="synopsis">SYNOPSIS</a></b>
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<b>qmqpd</b> [generic Postfix daemon options]
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<b><a name="description">DESCRIPTION</a></b>
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The Postfix QMQP server receives one message per connection. Each mes-
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sage is piped through the <a href="cleanup.8.html"><b>cleanup</b>(8)</a> daemon, and is placed into the
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<a href="QSHAPE_README.html#incoming_queue"><b>incoming</b> queue</a> as one single queue file. The program expects to be run
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from the <a href="master.8.html"><b>master</b>(8)</a> process manager.
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The QMQP server implements one access policy: only explicitly autho-
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rized client hosts are allowed to use the service.
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<b><a name="security">SECURITY</a></b>
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The QMQP server is moderately security-sensitive. It talks to QMQP
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clients and to DNS servers on the network. The QMQP server can be run
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chrooted at fixed low privilege.
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<b><a name="diagnostics">DIAGNOSTICS</a></b>
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Problems and transactions are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>.
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<b><a name="bugs">BUGS</a></b>
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The QMQP protocol provides only one server reply per message delivery.
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It is therefore not possible to reject individual recipients.
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The QMQP protocol requires the server to receive the entire message
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before replying. If a message is malformed, or if any netstring compo-
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nent is longer than acceptable, Postfix replies immediately and closes
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the connection. It is left up to the client to handle the situation.
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<b><a name="configuration_parameters">CONFIGURATION PARAMETERS</a></b>
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Changes to <a href="postconf.5.html"><b>main.cf</b></a> are picked up automatically, as <a href="qmqpd.8.html"><b>qmqpd</b>(8)</a> processes
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run for only a limited amount of time. Use the command "<b>postfix reload</b>"
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to speed up a change.
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The text below provides only a parameter summary. See <a href="postconf.5.html"><b>postconf</b>(5)</a> for
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more details including examples.
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<b><a name="content_inspection_controls">CONTENT INSPECTION CONTROLS</a></b>
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<b><a href="postconf.5.html#content_filter">content_filter</a> (empty)</b>
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After the message is queued, send the entire message to the
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specified <i>transport:destination</i>.
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<b><a href="postconf.5.html#receive_override_options">receive_override_options</a> (empty)</b>
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Enable or disable recipient validation, built-in content filter-
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ing, or address mapping.
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<b><a name="smtputf8_controls">SMTPUTF8 CONTROLS</a></b>
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Preliminary SMTPUTF8 support is introduced with Postfix 3.0.
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<b><a href="postconf.5.html#smtputf8_enable">smtputf8_enable</a> (yes)</b>
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Enable preliminary SMTPUTF8 support for the protocols described
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in <a href="https://tools.ietf.org/html/rfc6531">RFC 6531</a>, <a href="https://tools.ietf.org/html/rfc6532">RFC 6532</a>, and <a href="https://tools.ietf.org/html/rfc6533">RFC 6533</a>.
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<b><a href="postconf.5.html#smtputf8_autodetect_classes">smtputf8_autodetect_classes</a> (sendmail, verify)</b>
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Detect that a message requires SMTPUTF8 support for the speci-
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fied mail origin classes.
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Available in Postfix version 3.2 and later:
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<b><a href="postconf.5.html#enable_idna2003_compatibility">enable_idna2003_compatibility</a> (no)</b>
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Enable 'transitional' compatibility between IDNA2003 and
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IDNA2008, when converting UTF-8 domain names to/from the ASCII
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form that is used for DNS lookups.
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<b><a name="resource_and_rate_controls">RESOURCE AND RATE CONTROLS</a></b>
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<b><a href="postconf.5.html#line_length_limit">line_length_limit</a> (2048)</b>
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Upon input, long lines are chopped up into pieces of at most
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this length; upon delivery, long lines are reconstructed.
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<b><a href="postconf.5.html#hopcount_limit">hopcount_limit</a> (50)</b>
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The maximal number of Received: message headers that is allowed
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in the primary message headers.
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<b><a href="postconf.5.html#message_size_limit">message_size_limit</a> (10240000)</b>
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The maximal size in bytes of a message, including envelope
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information.
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<b><a href="postconf.5.html#qmqpd_timeout">qmqpd_timeout</a> (300s)</b>
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The time limit for sending or receiving information over the
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network.
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<b><a name="trouble_shooting_controls">TROUBLE SHOOTING CONTROLS</a></b>
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<b><a href="postconf.5.html#debug_peer_level">debug_peer_level</a> (2)</b>
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The increment in verbose logging level when a nexthop destina-
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tion, remote client or server name or network address matches a
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pattern given with the <a href="postconf.5.html#debug_peer_list">debug_peer_list</a> parameter.
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<b><a href="postconf.5.html#debug_peer_list">debug_peer_list</a> (empty)</b>
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Optional list of nexthop destination, remote client or server
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name or network address patterns that, if matched, cause the
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verbose logging level to increase by the amount specified in
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$<a href="postconf.5.html#debug_peer_level">debug_peer_level</a>.
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<b><a href="postconf.5.html#soft_bounce">soft_bounce</a> (no)</b>
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Safety net to keep mail queued that would otherwise be returned
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to the sender.
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<b><a name="tarpit_controls">TARPIT CONTROLS</a></b>
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<b><a href="postconf.5.html#qmqpd_error_delay">qmqpd_error_delay</a> (1s)</b>
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How long the Postfix QMQP server will pause before sending a
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negative reply to the remote QMQP client.
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<b><a name="miscellaneous_controls">MISCELLANEOUS CONTROLS</a></b>
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<b><a href="postconf.5.html#config_directory">config_directory</a> (see 'postconf -d' output)</b>
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The default location of the Postfix <a href="postconf.5.html">main.cf</a> and <a href="master.5.html">master.cf</a> con-
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figuration files.
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<b><a href="postconf.5.html#daemon_timeout">daemon_timeout</a> (18000s)</b>
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How much time a Postfix daemon process may take to handle a
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request before it is terminated by a built-in watchdog timer.
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<b><a href="postconf.5.html#ipc_timeout">ipc_timeout</a> (3600s)</b>
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The time limit for sending or receiving information over an
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internal communication channel.
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<b><a href="postconf.5.html#max_idle">max_idle</a> (100s)</b>
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The maximum amount of time that an idle Postfix daemon process
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waits for an incoming connection before terminating voluntarily.
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<b><a href="postconf.5.html#max_use">max_use</a> (100)</b>
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The maximal number of incoming connections that a Postfix daemon
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process will service before terminating voluntarily.
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<b><a href="postconf.5.html#process_id">process_id</a> (read-only)</b>
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The process ID of a Postfix command or daemon process.
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<b><a href="postconf.5.html#process_name">process_name</a> (read-only)</b>
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The process name of a Postfix command or daemon process.
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<b><a href="postconf.5.html#qmqpd_authorized_clients">qmqpd_authorized_clients</a> (empty)</b>
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What remote QMQP clients are allowed to connect to the Postfix
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QMQP server port.
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<b><a href="postconf.5.html#queue_directory">queue_directory</a> (see 'postconf -d' output)</b>
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The location of the Postfix top-level queue directory.
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<b><a href="postconf.5.html#syslog_facility">syslog_facility</a> (mail)</b>
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The syslog facility of Postfix logging.
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<b><a href="postconf.5.html#syslog_name">syslog_name</a> (see 'postconf -d' output)</b>
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A prefix that is prepended to the process name in syslog
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records, so that, for example, "smtpd" becomes "prefix/smtpd".
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<b><a href="postconf.5.html#verp_delimiter_filter">verp_delimiter_filter</a> (-=+)</b>
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The characters Postfix accepts as VERP delimiter characters on
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the Postfix <a href="sendmail.1.html"><b>sendmail</b>(1)</a> command line and in SMTP commands.
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Available in Postfix version 2.5 and later:
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<b><a href="postconf.5.html#qmqpd_client_port_logging">qmqpd_client_port_logging</a> (no)</b>
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Enable logging of the remote QMQP client port in addition to the
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hostname and IP address.
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Available in Postfix 3.3 and later:
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<b><a href="postconf.5.html#service_name">service_name</a> (read-only)</b>
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The <a href="master.5.html">master.cf</a> service name of a Postfix daemon process.
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<b><a name="see_also">SEE ALSO</a></b>
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<a href="https://cr.yp.to/proto/qmqp.html">https://cr.yp.to/proto/qmqp.html</a>, QMQP protocol
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<a href="cleanup.8.html">cleanup(8)</a>, message canonicalization
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<a href="master.8.html">master(8)</a>, process manager
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<a href="postlogd.8.html">postlogd(8)</a>, Postfix logging
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syslogd(8), system logging
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<b><a name="readme_files">README FILES</a></b>
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<a href="QMQP_README.html">QMQP_README</a>, Postfix ezmlm-idx howto.
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<b><a name="license">LICENSE</a></b>
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The Secure Mailer license must be distributed with this software.
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<b><a name="history">HISTORY</a></b>
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The qmqpd service was introduced with Postfix version 1.1.
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<b>AUTHOR(S)</b>
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Wietse Venema
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IBM T.J. Watson Research
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P.O. Box 704
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Yorktown Heights, NY 10598, USA
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Wietse Venema
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Google, Inc.
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111 8th Avenue
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New York, NY 10011, USA
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QMQPD(8)
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</pre> </body> </html>
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