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Diffstat (limited to 'man/man8/discard.8')
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diff --git a/man/man8/discard.8 b/man/man8/discard.8 new file mode 100644 index 0000000..7823891 --- /dev/null +++ b/man/man8/discard.8 @@ -0,0 +1,134 @@ +.TH DISCARD 8 +.ad +.fi +.SH NAME +discard +\- +Postfix discard mail delivery agent +.SH "SYNOPSIS" +.na +.nf +\fBdiscard\fR [generic Postfix daemon options] +.SH DESCRIPTION +.ad +.fi +The Postfix \fBdiscard\fR(8) 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 +discarding the mail, and recipient information. +The reason may be prefixed with an RFC 3463\-compatible detail code. +This program expects to be run from the \fBmaster\fR(8) process +manager. + +The \fBdiscard\fR(8) 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 recipients as finished or informs the +queue manager that delivery should be tried again at a later time. + +Delivery status reports are sent to the \fBtrace\fR(8) +daemon as appropriate. +.SH "SECURITY" +.na +.nf +.ad +.fi +The \fBdiscard\fR(8) mailer is not security\-sensitive. It does not talk +to the network, and can be run chrooted at fixed low privilege. +.SH "STANDARDS" +.na +.nf +RFC 3463 (Enhanced Status Codes) +.SH DIAGNOSTICS +.ad +.fi +Problems and transactions are logged to \fBsyslogd\fR(8) +or \fBpostlogd\fR(8). + +Depending on the setting of the \fBnotify_classes\fR parameter, +the postmaster is notified of bounces and of other trouble. +.SH "CONFIGURATION PARAMETERS" +.na +.nf +.ad +.fi +Changes to \fBmain.cf\fR are picked up automatically as \fBdiscard\fR(8) +processes run for only a limited amount of time. Use the command +"\fBpostfix reload\fR" to speed up a change. + +The text below provides only a parameter summary. See +\fBpostconf\fR(5) for more details including examples. +.IP "\fBconfig_directory (see 'postconf -d' output)\fR" +The default location of the Postfix main.cf and master.cf +configuration files. +.IP "\fBdaemon_timeout (18000s)\fR" +How much time a Postfix daemon process may take to handle a +request before it is terminated by a built\-in watchdog timer. +.IP "\fBdelay_logging_resolution_limit (2)\fR" +The maximal number of digits after the decimal point when logging +sub\-second delay values. +.IP "\fBdouble_bounce_sender (double\-bounce)\fR" +The sender address of postmaster notifications that are generated +by the mail system. +.IP "\fBipc_timeout (3600s)\fR" +The time limit for sending or receiving information over an internal +communication channel. +.IP "\fBmax_idle (100s)\fR" +The maximum amount of time that an idle Postfix daemon process waits +for an incoming connection before terminating voluntarily. +.IP "\fBmax_use (100)\fR" +The maximal number of incoming connections that a Postfix daemon +process will service before terminating voluntarily. +.IP "\fBprocess_id (read\-only)\fR" +The process ID of a Postfix command or daemon process. +.IP "\fBprocess_name (read\-only)\fR" +The process name of a Postfix command or daemon process. +.IP "\fBqueue_directory (see 'postconf -d' output)\fR" +The location of the Postfix top\-level queue directory. +.IP "\fBsyslog_facility (mail)\fR" +The syslog facility of Postfix logging. +.IP "\fBsyslog_name (see 'postconf -d' output)\fR" +A prefix that is prepended to the process name in syslog +records, so that, for example, "smtpd" becomes "prefix/smtpd". +.PP +Available in Postfix 3.3 and later: +.IP "\fBservice_name (read\-only)\fR" +The master.cf service name of a Postfix daemon process. +.SH "SEE ALSO" +.na +.nf +qmgr(8), queue manager +bounce(8), delivery status reports +error(8), Postfix error delivery agent +postconf(5), configuration parameters +master(5), generic daemon options +master(8), process manager +postlogd(8), Postfix logging +syslogd(8), system logging +.SH "LICENSE" +.na +.nf +.ad +.fi +The Secure Mailer license must be distributed with this software. +.SH HISTORY +.ad +.fi +This service was introduced with Postfix version 2.2. +.SH "AUTHOR(S)" +.na +.nf +Victor Duchovni +Morgan Stanley + +Based on code by: +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 |