On Sun, 7 Oct 2018 at 21:37, Janos Dohanics <w...@3dresearch.com> wrote:
> I have been trying to edit the Subject: line using header_checks, > without success: > > header_checks.pcre: > > if /^From: (.*)<(.+)mydomain\.com\>$/i > /^Subject: (.*)$/i > REPLACE Subject: some_string $1 > endif > > main.cf: > > header_checks = pcre:/usr/local/etc/postfix/header_checks.pcre > I don't know how this can be done by postfix. See http://www.postfix.org/header_checks.5.html - header lines are inspected one at a time and you can only take action on the one header line that is being inspected. To do what you want - rewrite subject depending on 'To:' I think you need a suitable milter. I'm sure someone more experienced than me can suggest one.
