Matus UHLAR - fantomas via Postfix-users:
> On 10.05.25 13:32, Ken Biggs via Postfix-users wrote:
> > So continuing the saga ... digging into /etc/postfix/header_checks I found
> > a revision I made back in January to try to keep our outgoing email from
> > having headers with the IP address of the email client that sent the email
> > to the server and maybe keep Gmail from marking our outgoing email as
> > SPAM.
>
> >/^Received:.*with ESMTPSA/ IGNORE
> >/^X-Originating-IP:/ IGNORE
> >/^X-Mailer:/ IGNORE
> >/^Mime-Version:/ IGNORE
>
> These should not be used globally but only at submission level.
>
> This can be achieved by using separate postfix instance for submitted mail
> - I don't see possibility of configuring separate cleanup instance for smtpd
master.cf:
submission inet n - n - - smtpd
-o syslog_name=postfix/submission
-o cleanup_service=submission_cleanup
...
submissions inet n - n - - smtpd
-o syslog_name=postfix/submissions
-o cleanup_service=submission_cleanup
...
submission_cleanup unix n - n - 0 cleanup
-o header_checks=submission_header_checks
-o mime_header_checks=submission_mime_header_checks
But I'll be the first to admit that this is not 'easy to use'.
Wietse
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