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ERROR(8postfix)                                                                      ERROR(8postfix)



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 destination), 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  in‐
       stead.  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-de‐
       livery. The retry service name is supported as of Postfix 2.4.

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

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) or postlogd(8).

       Depending  on  the  setting  of  the  notify_classes parameter, the postmaster 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 headers of mail that  Post‐
              fix  did not deliver and of SMTP conversation 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 configuration files.

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

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

       double_bounce_sender (double-bounce)
              The sender address of postmaster notifications that are generated 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)
              A  prefix  that is prepended to the process name in syslog records, so that, for exam‐
              ple, "smtpd" becomes "prefix/smtpd".

       Available in Postfix 3.3 and later:

       service_name (read-only)
              The master.cf service name of a Postfix daemon process.

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
       postlogd(8), Postfix logging
       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

       Wietse Venema
       Google, Inc.
       111 8th Avenue
       New York, NY 10011, USA



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