ERROR(8)                                                 ERROR(8)

NAME
       error - Postfix error mail delivery agent

SYNOPSIS
       error [generic Postfix daemon options]

DESCRIPTION
       The   Postfix  error  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.  This program expects to be run from the mas-
       ter(8) process manager.

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

STANDARDS
       None.

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.

       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  pro-
              cess.

       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 pro-
              cess  name  in  syslog  records,  so  that  "smtpd"
              becomes, for example, "postfix/smtpd".

SEE ALSO
       qmgr(8), queue manager
       bounce(8), delivery status reports
       postconf(5), configuration parameters
       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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