509 lines
32 KiB
HTML
509 lines
32 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 - qmgr(8) </title>
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</head> <body> <pre>
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QMGR(8) QMGR(8)
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<b><a name="name">NAME</a></b>
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qmgr - Postfix queue manager
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<b><a name="synopsis">SYNOPSIS</a></b>
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<b>qmgr</b> [generic Postfix daemon options]
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<b><a name="description">DESCRIPTION</a></b>
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The <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon awaits the arrival of incoming mail and arranges for
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its delivery via Postfix delivery processes. The actual mail routing
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strategy is delegated to the <a href="trivial-rewrite.8.html"><b>trivial-rewrite</b>(8)</a> daemon. This program
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expects to be run from the <a href="master.8.html"><b>master</b>(8)</a> process manager.
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Mail addressed to the local <b>double-bounce</b> address is logged and dis-
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carded. This stops potential loops caused by undeliverable bounce
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notifications.
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<b><a name="mail_queues">MAIL QUEUES</a></b>
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The <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon maintains the following queues:
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<b>incoming</b>
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Inbound mail from the network, or mail picked up by the local
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<a href="pickup.8.html"><b>pickup</b>(8)</a> daemon from the <b>maildrop</b> directory.
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<b>active</b> Messages that the queue manager has opened for delivery. Only a
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limited number of messages is allowed to enter the <b>active</b> queue
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(leaky bucket strategy, for a fixed delivery rate).
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<b>deferred</b>
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Mail that could not be delivered upon the first attempt. The
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queue manager implements exponential backoff by doubling the
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time between delivery attempts.
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<b>corrupt</b>
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Unreadable or damaged queue files are moved here for inspection.
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<b>hold</b> Messages that are kept "on hold" are kept here until someone
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sets them free.
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<b><a name="delivery_status_reports">DELIVERY STATUS REPORTS</a></b>
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The <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon keeps an eye on per-message delivery status reports
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in the following directories. Each status report file has the same name
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as the corresponding message file:
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<b>bounce</b> Per-recipient status information about why mail is bounced.
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These files are maintained by the <a href="bounce.8.html"><b>bounce</b>(8)</a> daemon.
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<b>defer</b> Per-recipient status information about why mail is delayed.
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These files are maintained by the <a href="defer.8.html"><b>defer</b>(8)</a> daemon.
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<b>trace</b> Per-recipient status information as requested with the Postfix
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"<b>sendmail -v</b>" or "<b>sendmail -bv</b>" command. These files are main-
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tained by the <a href="trace.8.html"><b>trace</b>(8)</a> daemon.
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The <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon is responsible for asking the <a href="bounce.8.html"><b>bounce</b>(8)</a>, <a href="defer.8.html"><b>defer</b>(8)</a> or
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<a href="trace.8.html"><b>trace</b>(8)</a> daemons to send delivery reports.
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<b><a name="strategies">STRATEGIES</a></b>
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The queue manager implements a variety of strategies for either opening
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queue files (input) or for message delivery (output).
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<b>leaky bucket</b>
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This strategy limits the number of messages in the <b>active</b> queue
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and prevents the queue manager from running out of memory under
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heavy load.
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<b>fairness</b>
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When the <b>active</b> queue has room, the queue manager takes one mes-
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sage from the <a href="QSHAPE_README.html#incoming_queue"><b>incoming</b> queue</a> and one from the <b>deferred</b> queue.
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This prevents a large mail backlog from blocking the delivery of
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new mail.
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<b>slow start</b>
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This strategy eliminates "thundering herd" problems by slowly
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adjusting the number of parallel deliveries to the same destina-
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tion.
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<b>round robin</b>
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The queue manager sorts delivery requests by destination.
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Round-robin selection prevents one destination from dominating
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deliveries to other destinations.
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<b>exponential backoff</b>
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Mail that cannot be delivered upon the first attempt is
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deferred. The time interval between delivery attempts is dou-
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bled after each attempt.
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<b>destination status cache</b>
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The queue manager avoids unnecessary delivery attempts by main-
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taining a short-term, in-memory list of unreachable destina-
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tions.
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<b>preemptive message scheduling</b>
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The queue manager attempts to minimize the average per-recipient
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delay while still preserving the correct per-message delays,
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using a sophisticated preemptive message scheduling.
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<b><a name="triggers">TRIGGERS</a></b>
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On an idle system, the queue manager waits for the arrival of trigger
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events, or it waits for a timer to go off. A trigger is a one-byte mes-
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sage. Depending on the message received, the queue manager performs
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one of the following actions (the message is followed by the symbolic
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constant used internally by the software):
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<b>D (QMGR_REQ_SCAN_DEFERRED)</b>
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Start a <a href="QSHAPE_README.html#deferred_queue">deferred queue</a> scan. If a <a href="QSHAPE_README.html#deferred_queue">deferred queue</a> scan is
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already in progress, that scan will be restarted as soon as it
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finishes.
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<b>I (QMGR_REQ_SCAN_INCOMING)</b>
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Start an <a href="QSHAPE_README.html#incoming_queue">incoming queue</a> scan. If an <a href="QSHAPE_README.html#incoming_queue">incoming queue</a> scan is
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already in progress, that scan will be restarted as soon as it
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finishes.
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<b>A (QMGR_REQ_SCAN_ALL)</b>
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Ignore <a href="QSHAPE_README.html#deferred_queue">deferred queue</a> file time stamps. The request affects the
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next <a href="QSHAPE_README.html#deferred_queue">deferred queue</a> scan.
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<b>F (QMGR_REQ_FLUSH_DEAD)</b>
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Purge all information about dead transports and destinations.
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<b>W (TRIGGER_REQ_WAKEUP)</b>
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Wakeup call, This is used by the master server to instantiate
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servers that should not go away forever. The action is to start
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an <a href="QSHAPE_README.html#incoming_queue">incoming queue</a> scan.
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The <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon reads an entire buffer worth of triggers. Multiple
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identical trigger requests are collapsed into one, and trigger requests
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are sorted so that <b>A</b> and <b>F</b> precede <b>D</b> and <b>I</b>. Thus, in order to force a
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<a href="QSHAPE_README.html#deferred_queue">deferred queue</a> run, one would request <b>A F D</b>; in order to notify the
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queue manager of the arrival of new mail one would request <b>I</b>.
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<b><a name="standards">STANDARDS</a></b>
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<a href="https://tools.ietf.org/html/rfc3463">RFC 3463</a> (Enhanced status codes)
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<a href="https://tools.ietf.org/html/rfc3464">RFC 3464</a> (Delivery status notifications)
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<b><a name="security">SECURITY</a></b>
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The <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon is not security sensitive. It reads single-character
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messages from untrusted local users, and thus may be susceptible to
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denial of service attacks. The <a href="qmgr.8.html"><b>qmgr</b>(8)</a> daemon does not talk to the out-
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side world, and it can be run at fixed low privilege in a chrooted
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environment.
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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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Corrupted message files are saved to the <b>corrupt</b> queue for further
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inspection.
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Depending on the setting of the <b><a href="postconf.5.html#notify_classes">notify_classes</a></b> parameter, the postmas-
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ter is notified of bounces and of other trouble.
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<b><a name="bugs">BUGS</a></b>
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A single queue manager process has to compete for disk access with mul-
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tiple front-end processes such as <a href="cleanup.8.html"><b>cleanup</b>(8)</a>. A sudden burst of inbound
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mail can negatively impact outbound delivery rates.
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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 not picked up automatically as <a href="qmgr.8.html"><b>qmgr</b>(8)</a> is a per-
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sistent process. Use the "<b>postfix reload</b>" command after a configuration
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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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In the text below, <i>transport</i> is the first field in a <a href="master.5.html"><b>master.cf</b></a> entry.
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<b><a name="compatibility_controls">COMPATIBILITY CONTROLS</a></b>
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Available before Postfix version 2.5:
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<b><a href="postconf.5.html#allow_min_user">allow_min_user</a> (no)</b>
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Allow a sender or recipient address to have `-' as the first
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character.
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Available with Postfix version 2.7 and later:
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<b><a href="postconf.5.html#default_filter_nexthop">default_filter_nexthop</a> (empty)</b>
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When a <a href="postconf.5.html#content_filter">content_filter</a> or FILTER request specifies no explicit
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next-hop destination, use $<a href="postconf.5.html#default_filter_nexthop">default_filter_nexthop</a> instead; when
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that value is empty, use the domain in the recipient address.
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<b><a name="active_queue_controls">ACTIVE QUEUE CONTROLS</a></b>
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<b><a href="postconf.5.html#qmgr_clog_warn_time">qmgr_clog_warn_time</a> (300s)</b>
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The minimal delay between warnings that a specific destination
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is clogging up the Postfix <a href="QSHAPE_README.html#active_queue">active queue</a>.
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<b><a href="postconf.5.html#qmgr_message_active_limit">qmgr_message_active_limit</a> (20000)</b>
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The maximal number of messages in the <a href="QSHAPE_README.html#active_queue">active queue</a>.
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<b><a href="postconf.5.html#qmgr_message_recipient_limit">qmgr_message_recipient_limit</a> (20000)</b>
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The maximal number of recipients held in memory by the Postfix
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queue manager, and the maximal size of the short-term, in-memory
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"dead" destination status cache.
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<b><a href="postconf.5.html#qmgr_message_recipient_minimum">qmgr_message_recipient_minimum</a> (10)</b>
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The minimal number of in-memory recipients for any message.
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<b><a href="postconf.5.html#default_recipient_limit">default_recipient_limit</a> (20000)</b>
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The default per-transport upper limit on the number of in-memory
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recipients.
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<b><a href="postconf.5.html#transport_recipient_limit">transport_recipient_limit</a> ($<a href="postconf.5.html#default_recipient_limit">default_recipient_limit</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_recipient_limit">default_recipient_limit</a>
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parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a> name of the
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message delivery transport.
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<b><a href="postconf.5.html#default_extra_recipient_limit">default_extra_recipient_limit</a> (1000)</b>
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The default value for the extra per-transport limit imposed on
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the number of in-memory recipients.
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<b><a href="postconf.5.html#transport_extra_recipient_limit">transport_extra_recipient_limit</a> ($<a href="postconf.5.html#default_extra_recipient_limit">default_extra_recipient_limit</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_extra_recipient_limit">default_extra_recipi</a>-
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<a href="postconf.5.html#default_extra_recipient_limit">ent_limit</a> parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a> name
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of the message delivery transport.
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Available in Postfix version 2.4 and later:
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<b><a href="postconf.5.html#default_recipient_refill_limit">default_recipient_refill_limit</a> (100)</b>
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The default per-transport limit on the number of recipients
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refilled at once.
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<b><a href="postconf.5.html#transport_recipient_refill_limit">transport_recipient_refill_limit</a> ($<a href="postconf.5.html#default_recipient_refill_limit">default_recipient_refill_limit</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_recipient_refill_limit">default_recipi</a>-
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<a href="postconf.5.html#default_recipient_refill_limit">ent_refill_limit</a> parameter value, where <i>transport</i> is the <a href="master.5.html">mas-
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ter.cf</a> name of the message delivery transport.
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<b><a href="postconf.5.html#default_recipient_refill_delay">default_recipient_refill_delay</a> (5s)</b>
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The default per-transport maximum delay between refilling recip-
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ients.
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<b><a href="postconf.5.html#transport_recipient_refill_delay">transport_recipient_refill_delay</a> ($<a href="postconf.5.html#default_recipient_refill_delay">default_recipient_refill_delay</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_recipient_refill_delay">default_recipi</a>-
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<a href="postconf.5.html#default_recipient_refill_delay">ent_refill_delay</a> parameter value, where <i>transport</i> is the <a href="master.5.html">mas-
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ter.cf</a> name of the message delivery transport.
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<b><a name="delivery_concurrency_controls">DELIVERY CONCURRENCY CONTROLS</a></b>
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<b><a href="postconf.5.html#initial_destination_concurrency">initial_destination_concurrency</a> (5)</b>
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The initial per-destination concurrency level for parallel
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delivery to the same destination.
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<b><a href="postconf.5.html#default_destination_concurrency_limit">default_destination_concurrency_limit</a> (20)</b>
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The default maximal number of parallel deliveries to the same
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destination.
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<b><a href="postconf.5.html#transport_destination_concurrency_limit">transport_destination_concurrency_limit</a> ($<a href="postconf.5.html#default_destination_concurrency_limit">default_destination_concur</a>-</b>
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<b><a href="postconf.5.html#default_destination_concurrency_limit">rency_limit</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_destination_concurrency_limit">default_destination_con</a>-
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<a href="postconf.5.html#default_destination_concurrency_limit">currency_limit</a> parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a>
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name of the message delivery transport.
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Available in Postfix version 2.5 and later:
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<b><a href="postconf.5.html#transport_initial_destination_concurrency">transport_initial_destination_concurrency</a> ($<a href="postconf.5.html#initial_destination_concurrency">initial_destination_concur</a>-</b>
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<b><a href="postconf.5.html#initial_destination_concurrency">rency</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#initial_destination_concurrency">initial_destination_con</a>-
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<a href="postconf.5.html#initial_destination_concurrency">currency</a> parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a> name
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of the message delivery transport.
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<b><a href="postconf.5.html#default_destination_concurrency_failed_cohort_limit">default_destination_concurrency_failed_cohort_limit</a> (1)</b>
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How many pseudo-cohorts must suffer connection or handshake
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failure before a specific destination is considered unavailable
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(and further delivery is suspended).
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<b><a href="postconf.5.html#transport_destination_concurrency_failed_cohort_limit">transport_destination_concurrency_failed_cohort_limit</a> ($<a href="postconf.5.html#default_destination_concurrency_failed_cohort_limit">default_desti</a>-</b>
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<b><a href="postconf.5.html#default_destination_concurrency_failed_cohort_limit">nation_concurrency_failed_cohort_limit</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_destination_concurrency_failed_cohort_limit">default_destination_con</a>-
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<a href="postconf.5.html#default_destination_concurrency_failed_cohort_limit">currency_failed_cohort_limit</a> parameter value, where <i>transport</i> is
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the <a href="master.5.html">master.cf</a> name of the message delivery transport.
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<b><a href="postconf.5.html#default_destination_concurrency_negative_feedback">default_destination_concurrency_negative_feedback</a> (1)</b>
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The per-destination amount of delivery concurrency negative
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feedback, after a delivery completes with a connection or hand-
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shake failure.
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<b><a href="postconf.5.html#transport_destination_concurrency_negative_feedback">transport_destination_concurrency_negative_feedback</a> ($<a href="postconf.5.html#default_destination_concurrency_negative_feedback">default_destina</a>-</b>
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<b><a href="postconf.5.html#default_destination_concurrency_negative_feedback">tion_concurrency_negative_feedback</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_destination_concurrency_negative_feedback">default_destination_con</a>-
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<a href="postconf.5.html#default_destination_concurrency_negative_feedback">currency_negative_feedback</a> parameter value, where <i>transport</i> is
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the <a href="master.5.html">master.cf</a> name of the message delivery transport.
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<b><a href="postconf.5.html#default_destination_concurrency_positive_feedback">default_destination_concurrency_positive_feedback</a> (1)</b>
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The per-destination amount of delivery concurrency positive
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feedback, after a delivery completes without connection or hand-
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shake failure.
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<b><a href="postconf.5.html#transport_destination_concurrency_positive_feedback">transport_destination_concurrency_positive_feedback</a> ($<a href="postconf.5.html#default_destination_concurrency_positive_feedback">default_destina</a>-</b>
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<b><a href="postconf.5.html#default_destination_concurrency_positive_feedback">tion_concurrency_positive_feedback</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_destination_concurrency_positive_feedback">default_destination_con</a>-
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<a href="postconf.5.html#default_destination_concurrency_positive_feedback">currency_positive_feedback</a> parameter value, where <i>transport</i> is
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the <a href="master.5.html">master.cf</a> name of the message delivery transport.
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<b><a href="postconf.5.html#destination_concurrency_feedback_debug">destination_concurrency_feedback_debug</a> (no)</b>
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Make the queue manager's feedback algorithm verbose for perfor-
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mance analysis purposes.
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<b><a name="recipient_scheduling_controls">RECIPIENT SCHEDULING CONTROLS</a></b>
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<b><a href="postconf.5.html#default_destination_recipient_limit">default_destination_recipient_limit</a> (50)</b>
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The default maximal number of recipients per message delivery.
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<b><a href="postconf.5.html#transport_destination_recipient_limit">transport_destination_recipient_limit</a> ($<a href="postconf.5.html#default_destination_recipient_limit">default_destination_recipi</a>-</b>
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<b><a href="postconf.5.html#default_destination_recipient_limit">ent_limit</a>)</b>
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A transport-specific override for the <a href="postconf.5.html#default_destination_recipient_limit">default_destination_recip</a>-
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<a href="postconf.5.html#default_destination_recipient_limit">ient_limit</a> parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a>
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name of the message delivery transport.
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<b><a name="message_scheduling_controls">MESSAGE SCHEDULING CONTROLS</a></b>
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<b><a href="postconf.5.html#default_delivery_slot_cost">default_delivery_slot_cost</a> (5)</b>
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How often the Postfix queue manager's scheduler is allowed to
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preempt delivery of one message with another.
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<b><a href="postconf.5.html#transport_delivery_slot_cost">transport_delivery_slot_cost</a> ($<a href="postconf.5.html#default_delivery_slot_cost">default_delivery_slot_cost</a>)</b>
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|
A transport-specific override for the <a href="postconf.5.html#default_delivery_slot_cost">default_delivery_slot_cost</a>
|
|
parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a> name of the
|
|
message delivery transport.
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|
|
|
<b><a href="postconf.5.html#default_minimum_delivery_slots">default_minimum_delivery_slots</a> (3)</b>
|
|
How many recipients a message must have in order to invoke the
|
|
Postfix queue manager's scheduling algorithm at all.
|
|
|
|
<b><a href="postconf.5.html#transport_minimum_delivery_slots">transport_minimum_delivery_slots</a> ($<a href="postconf.5.html#default_minimum_delivery_slots">default_minimum_delivery_slots</a>)</b>
|
|
A transport-specific override for the <a href="postconf.5.html#default_minimum_delivery_slots">default_minimum_deliv</a>-
|
|
<a href="postconf.5.html#default_minimum_delivery_slots">ery_slots</a> parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a> name
|
|
of the message delivery transport.
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|
|
|
<b><a href="postconf.5.html#default_delivery_slot_discount">default_delivery_slot_discount</a> (50)</b>
|
|
The default value for transport-specific _delivery_slot_discount
|
|
settings.
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|
|
|
<b><a href="postconf.5.html#transport_delivery_slot_discount">transport_delivery_slot_discount</a> ($<a href="postconf.5.html#default_delivery_slot_discount">default_delivery_slot_discount</a>)</b>
|
|
A transport-specific override for the <a href="postconf.5.html#default_delivery_slot_discount">default_delivery_slot_dis</a>-
|
|
<a href="postconf.5.html#default_delivery_slot_discount">count</a> parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a> name of
|
|
the message delivery transport.
|
|
|
|
<b><a href="postconf.5.html#default_delivery_slot_loan">default_delivery_slot_loan</a> (3)</b>
|
|
The default value for transport-specific _delivery_slot_loan
|
|
settings.
|
|
|
|
<b><a href="postconf.5.html#transport_delivery_slot_loan">transport_delivery_slot_loan</a> ($<a href="postconf.5.html#default_delivery_slot_loan">default_delivery_slot_loan</a>)</b>
|
|
A transport-specific override for the <a href="postconf.5.html#default_delivery_slot_loan">default_delivery_slot_loan</a>
|
|
parameter value, where <i>transport</i> is the <a href="master.5.html">master.cf</a> name of the
|
|
message delivery transport.
|
|
|
|
<b><a name="other_resource_and_rate_controls">OTHER RESOURCE AND RATE CONTROLS</a></b>
|
|
<b><a href="postconf.5.html#minimal_backoff_time">minimal_backoff_time</a> (300s)</b>
|
|
The minimal time between attempts to deliver a deferred message;
|
|
prior to Postfix 2.4 the default value was 1000s.
|
|
|
|
<b><a href="postconf.5.html#maximal_backoff_time">maximal_backoff_time</a> (4000s)</b>
|
|
The maximal time between attempts to deliver a deferred message.
|
|
|
|
<b><a href="postconf.5.html#maximal_queue_lifetime">maximal_queue_lifetime</a> (5d)</b>
|
|
Consider a message as undeliverable, when delivery fails with a
|
|
temporary error, and the time in the queue has reached the <a href="postconf.5.html#maximal_queue_lifetime">maxi</a>-
|
|
<a href="postconf.5.html#maximal_queue_lifetime">mal_queue_lifetime</a> limit.
|
|
|
|
<b><a href="postconf.5.html#queue_run_delay">queue_run_delay</a> (300s)</b>
|
|
The time between <a href="QSHAPE_README.html#deferred_queue">deferred queue</a> scans by the queue manager;
|
|
prior to Postfix 2.4 the default value was 1000s.
|
|
|
|
<b><a href="postconf.5.html#transport_retry_time">transport_retry_time</a> (60s)</b>
|
|
The time between attempts by the Postfix queue manager to con-
|
|
tact a malfunctioning message delivery transport.
|
|
|
|
Available in Postfix version 2.1 and later:
|
|
|
|
<b><a href="postconf.5.html#bounce_queue_lifetime">bounce_queue_lifetime</a> (5d)</b>
|
|
Consider a bounce message as undeliverable, when delivery fails
|
|
with a temporary error, and the time in the queue has reached
|
|
the <a href="postconf.5.html#bounce_queue_lifetime">bounce_queue_lifetime</a> limit.
|
|
|
|
Available in Postfix version 2.5 and later:
|
|
|
|
<b><a href="postconf.5.html#default_destination_rate_delay">default_destination_rate_delay</a> (0s)</b>
|
|
The default amount of delay that is inserted between individual
|
|
message deliveries to the same destination and over the same
|
|
message delivery transport.
|
|
|
|
<b><a href="postconf.5.html#transport_destination_rate_delay">transport_destination_rate_delay</a> ($<a href="postconf.5.html#default_destination_rate_delay">default_destination_rate_delay</a>)</b>
|
|
A transport-specific override for the <a href="postconf.5.html#default_destination_rate_delay">default_destina</a>-
|
|
<a href="postconf.5.html#default_destination_rate_delay">tion_rate_delay</a> parameter value, where <i>transport</i> is the <a href="master.5.html">mas-
|
|
ter.cf</a> name of the message delivery transport.
|
|
|
|
Available in Postfix version 3.1 and later:
|
|
|
|
<b><a href="postconf.5.html#default_transport_rate_delay">default_transport_rate_delay</a> (0s)</b>
|
|
The default amount of delay that is inserted between individual
|
|
message deliveries over the same message delivery transport,
|
|
regardless of destination.
|
|
|
|
<b><a href="postconf.5.html#transport_transport_rate_delay">transport_transport_rate_delay</a> ($<a href="postconf.5.html#default_transport_rate_delay">default_transport_rate_delay</a>)</b>
|
|
A transport-specific override for the <a href="postconf.5.html#default_transport_rate_delay">default_trans</a>-
|
|
<a href="postconf.5.html#default_transport_rate_delay">port_rate_delay</a> parameter value, where the initial <i>transport</i> in
|
|
the parameter name is the <a href="master.5.html">master.cf</a> name of the message delivery
|
|
transport.
|
|
|
|
<b><a name="safety_controls">SAFETY CONTROLS</a></b>
|
|
<b><a href="postconf.5.html#qmgr_daemon_timeout">qmgr_daemon_timeout</a> (1000s)</b>
|
|
How much time a Postfix queue manager process may take to handle
|
|
a request before it is terminated by a built-in watchdog timer.
|
|
|
|
<b><a href="postconf.5.html#qmgr_ipc_timeout">qmgr_ipc_timeout</a> (60s)</b>
|
|
The time limit for the queue manager to send or receive informa-
|
|
tion over an internal communication channel.
|
|
|
|
Available in Postfix version 3.1 and later:
|
|
|
|
<b><a href="postconf.5.html#address_verify_pending_request_limit">address_verify_pending_request_limit</a> (see 'postconf -d' output)</b>
|
|
A safety limit that prevents address verification requests from
|
|
overwhelming the Postfix queue.
|
|
|
|
<b><a name="miscellaneous_controls">MISCELLANEOUS CONTROLS</a></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#defer_transports">defer_transports</a> (empty)</b>
|
|
The names of message delivery transports that should not deliver
|
|
mail unless someone issues "<b>sendmail -q</b>" or equivalent.
|
|
|
|
<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#helpful_warnings">helpful_warnings</a> (yes)</b>
|
|
Log warnings about problematic configuration settings, and pro-
|
|
vide helpful suggestions.
|
|
|
|
<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#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 3.0 and later:
|
|
|
|
<b><a href="postconf.5.html#confirm_delay_cleared">confirm_delay_cleared</a> (no)</b>
|
|
After sending a "your message is delayed" notification, inform
|
|
the sender when the delay clears up.
|
|
|
|
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><a name="files">FILES</a></b>
|
|
/var/spool/postfix/incoming, <a href="QSHAPE_README.html#incoming_queue">incoming queue</a>
|
|
/var/spool/postfix/active, <a href="QSHAPE_README.html#active_queue">active queue</a>
|
|
/var/spool/postfix/deferred, <a href="QSHAPE_README.html#deferred_queue">deferred queue</a>
|
|
/var/spool/postfix/bounce, non-delivery status
|
|
/var/spool/postfix/defer, non-delivery status
|
|
/var/spool/postfix/trace, delivery status
|
|
|
|
<b><a name="see_also">SEE ALSO</a></b>
|
|
<a href="trivial-rewrite.8.html">trivial-rewrite(8)</a>, address routing
|
|
<a href="bounce.8.html">bounce(8)</a>, delivery status reports
|
|
<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><a name="readme_files">README FILES</a></b>
|
|
<a href="SCHEDULER_README.html">SCHEDULER_README</a>, scheduling algorithm
|
|
<a href="QSHAPE_README.html">QSHAPE_README</a>, Postfix queue analysis
|
|
|
|
<b><a name="license">LICENSE</a></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
|
|
|
|
Preemptive scheduler enhancements:
|
|
Patrik Rak
|
|
Modra 6
|
|
155 00, Prague, Czech Republic
|
|
|
|
Wietse Venema
|
|
Google, Inc.
|
|
111 8th Avenue
|
|
New York, NY 10011, USA
|
|
|
|
QMGR(8)
|
|
</pre> </body> </html>
|