On Sun, 7 Oct 2018 16:19:32 -0500 Noel Jones <njo...@megan.vbhcs.org> wrote:
> On 10/7/2018 3:57 PM, Dominic Raferd wrote: > > On Sun, 7 Oct 2018 at 21:37, Janos Dohanics <w...@3dresearch.com > > <mailto:w...@3dresearch.com>> wrote: > > > > I have been trying to edit the Subject: line using > > header_checks, without success: > > > > [...] > > > > > > 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. > > > Dominic is correct, postfix header_checks operates on one header at > a time, and doesn't save state between headers. You'll need a milter > or other external filter. > > regex-milter is a fairly simple milter often recommended for things > such as this. MIMEDefang is a more complex milter that can alter > subjects, plus many more features. Thank you both, looks like I'll learn something new! -- Janos Dohanics
