.TH BOUNCE 8 .ad .fi .SH NAME bounce \- Postfix message bounce or defer daemon .SH SYNOPSIS .na .nf \fBbounce\fR [generic Postfix daemon options] .SH DESCRIPTION .ad .fi The \fBbounce\fR 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 \fBmaster.cf\fR file (either \fBbounce\fR or \fBdefer\fR). This program expects to be run from the \fBmaster\fR(8) process manager. The \fBbounce\fR daemon processes two types of service requests: .IP \(bu Append a recipient status record to a per-message log file. .IP \(bu Post a bounce message, with a copy of a log file and of the corresponding message. When the bounce is posted successfully, the log file is deleted. .PP The software does a best effort to notify the sender that there was a problem. A notification is sent even when the log file or original message cannot be read. Optionally, a 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. .SH STANDARDS .na .nf RFC 822 (ARPA Internet Text Messages) RFC 1894 (Delivery Status Notifications) RFC 2045 (Format of Internet Message Bodies) .SH DIAGNOSTICS .ad .fi Problems and transactions are logged to \fBsyslogd\fR(8). .SH BUGS .ad .fi The log files use an ad-hoc, unstructured format. This will have to change in order to easily support standard delivery status notifications. .SH CONFIGURATION PARAMETERS .na .nf .ad .fi The following \fBmain.cf\fR parameters are especially relevant to this program. See the Postfix \fBmain.cf\fR file for syntax details and for default values. Use the \fBpostfix reload\fR command after a configuration change. .IP \fBbounce_notice_recipient\fR The recipient of single bounce postmaster notices. .IP \fB2bounce_notice_recipient\fR The recipient of double bounce postmaster notices. .IP \fBdelay_notice_recipient\fR The recipient of "delayed mail" postmaster notices. .IP \fBbounce_size_limit\fR Limit the amount of original message context that is sent in a non-delivery notification. .IP \fBmail_name\fR Use this mail system name in the introductory text at the start of a bounce message. .IP \fBnotify_classes\fR Notify the postmaster of bounced mail when this parameter includes the \fBbounce\fR class. For privacy reasons, the message body is not included. .SH SEE ALSO .na .nf master(8) process manager qmgr(8) queue manager syslogd(8) system logging .SH LICENSE .na .nf .ad .fi The Secure Mailer license must be distributed with this software. .SH AUTHOR(S) .na .nf Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA