bboouunnccee__tteemmppllaattee__ffiillee == //eettcc//ppoossttffiixx//bboouunnccee..ccff
ppoossttccoonnff --bb [_t_e_m_p_l_a_t_e___f_i_l_e]
By default, these notifications are generated from built-in templates with message headers and message text. Sites can override the built-in information by specifying a bounce template file with the bboouunnccee__tteemmppllaattee__ffiillee configuration parameter.
This document describes the general procedure to create a bounce template file, followed by the specific details of bounce template formats.
To create a customized bounce template file, create a temporary copy of the file //eettcc//ppoossttffiixx//bboouunnccee..ccff..ddeeffaauulltt and edit the temporary file.
To preview the results of $_n_a_m_e expansions in the template text, use the command
ppoossttccoonnff --bb _t_e_m_p_o_r_a_r_y___f_i_l_e
Errors in the template will be reported to the standard error stream and to the syslog daemon.
While previewing the text, be sure to pay particular attention to the expansion of time value parameters that appear in the delayed mail notification text.
Once the result is satisfactory, copy the template to the Postfix configuration directory and specify in main.cf something like:
/etc/postfix/main.cf: bounce_template_file = /etc/postfix/bounce.cf
The template file can specify templates for failed mail, delayed mail, successful delivery or for address verification. These templates are named ffaaiilluurree__tteemmppllaattee, ddeellaayy__tteemmppllaattee, ssuucccceessss__tteemmppllaattee and vveerriiffyy__tteemmppllaattee, respectively. You can but do not have to specify all four templates in a bounce template file.
Each template starts with "_t_e_m_p_l_a_t_e___n_a_m_e == <<<
failure_template = <
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
EOF
The usage and specification of bounce templates is
subject to the following restrictions:
Examples of all templates can be found in the file
bboouunnccee..ccff..ddeeffaauulltt in the Postfix configuration
directory.
The following headers are supported:
The usage and specification of template message headers is
subject to the following restrictions:
The usage and specification of template message text is
subject to the following restrictions:
# The failure template is used for undeliverable mail.
TEMPLATE HEADER FORMAT
The first portion of a bounce template consists of optional
template headers. Some become message headers in the
delivery status notification; some control the formatting
of that notification. Headers not specified in a template
will be left at their default value.
TEMPLATE MESSAGE TEXT FORMAT
The second portion of a bounce template consists of message
text. As the above example shows, template message text may
contain main.cf $parameters. Besides the parameters that are
defined in main.cf, the following parameters are treated
specially depending on the suffix that is appended to their
name.
SEE ALSO
bounce(8), Postfix delivery status notifications
postconf(5), configuration parameters
LICENSE
The Secure Mailer license must be distributed with this software.
HISTORY
The Postfix bounce template format was originally developed by
Nicolas Riendeau.
AUTHOR(S)
Wietse Venema
IBM T.J. Watson Research
P.O. Box 704
Yorktown Heights, NY 10598, USA