<b><a name="description">DESCRIPTION</a></b>
The Postfix <a href="discard.8.html"><b>discard</b>(8)</a> delivery agent processes delivery requests from
the queue manager. Each request specifies a queue file, a sender address, a next-hop destination that is treated as the reason for dis-
carding the mail, and recipient information. The reason may be pre-
fixed with an <a href="https://tools.ietf.org/html/rfc3463">RFC 3463</a>-compatible detail code. This program expects to
be run from the <a href="master.8.html"><b>master</b>(8)</a> process manager.
The <a href="discard.8.html"><b>discard</b>(8)</a> delivery agent pretends to deliver all recipients in the
delivery request, logs the "next-hop" destination as the reason for
discarding the mail, updates the queue file, and either marks recipi-
ents as finished or informs the queue manager that delivery should be
tried again at a later time.
Delivery status reports are sent to the <a href="trace.8.html"><b>trace</b>(8)</a> daemon as appropriate.
<b><a name="security">SECURITY</a></b>
The <a href="discard.8.html"><b>discard</b>(8)</a> mailer is not security-sensitive. It does not talk to
the network, and can be run chrooted at fixed low privilege.
<b><a name="diagnostics">DIAGNOSTICS</a></b>
Problems and transactions are logged to <b>syslogd</b>(8) or <a href="postlogd.8.html"><b>postlogd</b>(8)</a>.
Depending on the setting of the <b><a href="postconf.5.html#notify_classes">notify_classes</a></b> parameter, the postmas-
ter is notified of bounces and of other trouble.
<b><a name="configuration_parameters">CONFIGURATION PARAMETERS</a></b>
Changes to <a href="postconf.5.html"><b>main.cf</b></a> are picked up automatically as <a href="discard.8.html"><b>discard</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><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 timea 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 delay values.
<b><a href="postconf.5.html#double_bounce_sender">double_bounce_sender</a> (double-bounce)</b>
The sender address of postmaster notifications that are gener-
ated by the mail system.
<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#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 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.
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.
