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ERROR(8)                                                              ERROR(8)

NAME
       error - Postfix error 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, a domain or host name that
       is treated as the reason for non-delivery,  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.

       The  error(8) delivery agent bounces all recipients in the
       delivery request  using  the  "next-hop"  domain  or  host
       information  as  the  reason for non-delivery, updates the
       queue file and 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   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 the next service request
              before exiting.

       max_use (100)
              The maximal number of connection requests before  a
              Postfix daemon process terminates.

       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

                                                                      ERROR(8)