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  destination),  and  recipient
       information.   The  reason  may  be  prefixed  with an RFC
       3463-compatible detail code.  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 service  name  is  sup-
       ported 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  postmaster  is notified of bounces and of other trou-
       ble.

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  Postfix  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  terminated 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  termi-
              nating 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  direc-
              tory.

       syslog_facility (mail)
              The syslog facility of Postfix logging.

       syslog_name (postfix)
              The  mail  system  name  that  is  prepended to the
              process name in syslog  records,  so  that  "smtpd"
              becomes, for example, "postfix/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

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