Randy Bush via Postfix-users:
> >> fairly new at trying a scaled postfix install, so i assume it is my lack
> >> of clue. trying to use milter_header_checks to reject all marked spam
> >> on debian 12 running `mail_version = 3.7.11`
> >>
> >> milter_header_checks = regexp:/etc/postfix/milter_header_checks
> >>
> >> with
> >>
> >> # cat /etc/postfix/milter_header_checks
> >> /^X-Spam.*YES/i REJECT
> >>
> >> seems to let marked headers thhrough to be caught by a procmail filter
> >> on the final destination host.
> >
> > Please review https://www.postfix.org/regexp_table.5.html#table_format
> > and do pay attention to the 'i' option.
>
> removed the `i` and they are still getting through.
milter_header_checks cannot see all headers, not even all headers
added by a milter. They only see headers that are added by a milter
that is connected to the cleanup process that implements
milter_header_checks.
If you add the milters before (or after) a content filter, then the
milter_header_checks must also be configured wiith the cleanup
process before (or after).
Otherwise be prepared to post output from "postconf -nf"
and "postconf -Mf".
Wietse
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