Provided by: postfix_2.2.10-1_i386 bug


       bounce - Postfix message bounce or defer daemon


       bounce [generic Postfix daemon options]


       The  bounce(8) daemon maintains per-message log files with non-delivery
       status information. Each log file is named after the queue file that it
       corresponds  to,  and  is  kept in a queue subdirectory named after the
       service name in the file (either  bounce,  defer  or  trace).
       This program expects to be run from the master(8) process manager.

       The bounce(8) daemon processes two types of service requests:

       ·      Append a recipient (non-)delivery status record to a per-message
              log file.

       ·      Enqueue a bounce message, with a copy of a per-message log  file
              and  of  the  corresponding  message. When the bounce message is
              enqueued successfully, the per-message log file is deleted.

       The  software  does  a  best  notification   effort.   A   non-delivery
       notification  is  sent  even  when the log file or the original message
       cannot be read.

       Optionally, a bounce (defer, trace) client can request  that  the  per-
       message  log  file be deleted when the requested operation fails.  This
       is used by clients that cannot retry transactions  by  themselves,  and
       that depend on retry logic in their own client.


       RFC 822 (ARPA Internet Text Messages)
       RFC 1894 (Delivery Status Notifications)
       RFC 2045 (Format of Internet Message Bodies)


       Problems and transactions are logged to syslogd(8).


       Changes  to are picked up automatically, as bounce(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.

       backwards_bounce_logfile_compatibility (yes)
              Produce additional bounce(8) logfile records that can be read by
              Postfix versions before 2.0.

       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.

       bounce_size_limit (50000)
              The maximal amount of original message text that is  sent  in  a
              non-delivery notification.

       config_directory (seepostconf -doutput)
              The  default  location  of  the  Postfix  and
              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_notice_recipient (postmaster)
              The  recipient  of  postmaster  notifications  with  the message
              headers   of   mail   that   cannot    be    delivered    within
              $delay_warning_time time units.

       deliver_lock_attempts (20)
              The maximal number of attempts to acquire an exclusive lock on a
              mailbox file or bounce(8) logfile.

       deliver_lock_delay (1s)
              The time between attempts to acquire  an  exclusive  lock  on  a
              mailbox file or bounce(8) logfile.

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

       mail_name (Postfix)
              The mail system name that is displayed in Received: headers,  in
              the SMTP greeting banner, and in bounced mail.

       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 (seepostconf -doutput)
              The location of the Postfix top-level queue directory.

       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,


       /var/spool/postfix/bounce/* non-delivery records
       /var/spool/postfix/defer/* non-delivery records
       /var/spool/postfix/trace/* delivery status records


       qmgr(8), queue manager
       postconf(5), configuration parameters
       master(5), generic daemon options
       master(8), process manager
       syslogd(8), system logging


       The Secure Mailer license must be distributed with this software.


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