Wietse Venema:
> Noel Jones:
> > Unexpected behavior when testing smtpd_reject_contact_information.
> >
> > When sending to an unknown recipient, the $recipient macro
> > isn't expanded. Is this expected behavior? I haven't tested
> > with other reject reasons.
>
> You know what? I wil have to remove sender/recipient from the manual
> page (i.e. it is NOT SUPPORTED) and postpone that for a later
> Postfix version. It may not seem obvious, but the code that prints
> the error to the client actually runs long after all the checking
> is done. In fact, if you have multiple recipients, and some later
> recipient rejected, it would probably expand $recipient to the
> first accepted recipient.
Updated manpage follows....
Wietse
smtpd_reject_contact_information (default: empty)
Optional contact information that is appended after each SMTP server
4XX or 5XX response.
Example:
/etc/postfix/main.cf:
smtpd_reject_contact_information = For assistance, call 800-555-0101.
Please provide the following information in your problem report:
time ($localtime), client ($client_address) and server
($server_name).
Server response:
550-5.5.1 <u...@example> Recipient address rejected: User unknown
550 5.5.1 For assistance, call 800-555-0101. Please provide the
following information in your problem report: time (Jan 4 15:42:00),
client (192.168.1.248) and server (mail1.example.com).
Note: this text is meant to make it easier to find the Postfix logfile
records for a failed SMTP session. The text itself is not logged to the
Postfix SMTP server's maillog file.
Be sure to keep the text as short as possible. Long text may be trun-
cated before it is logged in the Postfix SMTP server's maillog file, or
before it is returned to the sender in a delivery status notification.
This feature supports a limited number of $name attributes in the con-
tact text. These are replaced by their current value for the SMTP ses-
sion:
client_address
The Client IP address that is logged in the maillog file.
client_port
The client TCP port that is logged in the maillog file.
localtime
The server local time (Mmm dd hh:mm:ss) that is logged in the
maillog file.
server_name
The server's myhostname value. This attribute is made available
for sites with multiple MTAs (perhaps behind a load-balancer),
where the server name can help the server support team to
quickly find the right log files.
Notes:
o NOT SUPPORTED are other attributes such as sender, recipient, or
main.cf parameters.
o For safety reasons, text that does not match $smtpd_expan-
sion_filter is censored.
This feature supports \n as a request for a line break in the contact
text. Postfix automatically inserts after each line break the three-
digit SMTP reply code (and optional enhanced status code) from the
original Postfix reject message.
This feature is available in Postfix 2.8 and later.
