On 2022-03-30 07:32, Nikolaos Milas wrote:
It seems as if these mails are not delivered successfully, but I
cannot see them in any queue either.
Delivered mail is deleted from the Postfix queue. It would have been
moved out of Postfix by some means, such as a delivery agent or an
external transport(5) like smtp(8).
How can I troubleshoot these? What may be going wrong?
syslog_name is your friend. I noticed none of your log lines had any
syslog_name other than the default.
Postfix will have a default smtpd(8) instance (usually the one on 25,
listening for mail arriving from outside) and also a default smtp(8),
the client process delivering mail to external MX hosts.
Any OTHER instance of these should have a descriptive syslog_name set
in master.cf:
... ... ... ... smtpd
-o ...
-o syslog_name=postfix/whatever
-o ...
Where "whatever" describes the purpose of that listener or transport.
http://www.postfix.org/postconf.5.html#syslog_name
See also the sample master.cf as distributed in source code.
--
http://rob0.nodns4.us/
