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ERROR(8)							      ERROR(8)

NAME
       error - Postfix error/retry mail delivery agent

SYNOPSIS
       error [generic Postfix daemon options]

DESCRIPTION
       The  Postfix  error(8)  delivery agent processes delivery requests from
       the queue manager. Each	request	 specifies  a  queue  file,  a	sender
       address,	 the reason for non-delivery (specified as the next-hop desti‐
       nation), and recipient information.  The reason may be prefixed with an
       RFC  3463-compatible  detail code; if none is specified a default 4.0.0
       or 5.0.0 code is used instead.  This program expects to be run from the
       master(8) process manager.

       Depending  on the service name in master.cf, error or retry, the server
       bounces or defers all recipients in  the	 delivery  request  using  the
       "next-hop"  information	as the reason for non-delivery. The retry ser‐
       vice name is supported as of Postfix 2.4.

       Delivery status reports are sent to the bounce(8), defer(8) or trace(8)
       daemon as appropriate.

SECURITY
       The  error(8) mailer is not security-sensitive. It does not talk to the
       network, and can be run chrooted at fixed low privilege.

STANDARDS
       RFC 3463 (Enhanced Status Codes)

DIAGNOSTICS
       Problems and transactions are logged to syslogd(8).

       Depending on the setting of the notify_classes parameter, the  postmas‐
       ter is notified of bounces and of other trouble.

CONFIGURATION PARAMETERS
       Changes	to  main.cf  are picked up automatically as error(8) processes
       run for only a limited amount of time. Use the command "postfix reload"
       to speed up a change.

       The  text  below provides only a parameter summary. See postconf(5) for
       more details including examples.

       2bounce_notice_recipient (postmaster)
	      The recipient of undeliverable mail that cannot be  returned  to
	      the sender.

       bounce_notice_recipient (postmaster)
	      The recipient of postmaster notifications with the message head‐
	      ers of mail that Postfix did not deliver and of  SMTP  conversa‐
	      tion transcripts of mail that Postfix did not receive.

       config_directory (see 'postconf -d' output)
	      The  default  location of the Postfix main.cf and master.cf con‐
	      figuration files.

       daemon_timeout (18000s)
	      How much time a Postfix daemon process  may  take	 to  handle  a
	      request before it is terminated by a built-in watchdog timer.

       delay_logging_resolution_limit (2)
	      The  maximal  number of digits after the decimal point when log‐
	      ging sub-second delay values.

       double_bounce_sender (double-bounce)
	      The sender address of postmaster notifications that  are	gener‐
	      ated by the mail system.

       ipc_timeout (3600s)
	      The  time	 limit	for  sending  or receiving information over an
	      internal communication channel.

       max_idle (100s)
	      The maximum amount of time that an idle Postfix  daemon  process
	      waits for an incoming connection before terminating voluntarily.

       max_use (100)
	      The maximal number of incoming connections that a Postfix daemon
	      process will service before terminating voluntarily.

       notify_classes (resource, software)
	      The list of error classes that are reported to the postmaster.

       process_id (read-only)
	      The process ID of a Postfix command or daemon process.

       process_name (read-only)
	      The process name of a Postfix command or daemon process.

       queue_directory (see 'postconf -d' output)
	      The location of the Postfix top-level queue directory.

       syslog_facility (mail)
	      The syslog facility of Postfix logging.

       syslog_name (see 'postconf -d' output)
	      The mail system name that is prepended to the  process  name  in
	      syslog  records,	so  that  "smtpd" becomes, for example, "post‐
	      fix/smtpd".

SEE ALSO
       qmgr(8), queue manager
       bounce(8), delivery status reports
       discard(8), Postfix discard delivery agent
       postconf(5), configuration parameters
       master(5), generic daemon options
       master(8), process manager
       syslogd(8), system logging

LICENSE
       The Secure Mailer license must be distributed with this software.

AUTHOR(S)
       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704
       Yorktown Heights, NY 10598, USA

								      ERROR(8)
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