On Tue, 3 Feb 2015 11:21:17 +1300 Jeremy Bowen <jer...@smartpoint.co.nz> wrote: > I think I can do what I need to accomplish more accurately & > efficiently with sed and procmail. I'm just not quite sure how I > would go about configuring postfix to make this operate on outgoing > mail. Any advice ?
OK, I've started with the FILTER_README and, using the "Simple Content Filter" example, have come up with a simple shell script which modifies the message the way I need it. I've tested this with: % /usr/local/bin/myscript -f sender -- recipient... <message-file From here it looks like I need to initially add the following lines to master.cf: filter unix - n n - 10 pipe flags=Rq user=filter null_sender= argv=/usr/local/bin/myscript -f ${sender} -- ${recipient} This filter should pick up email from the "submission" service. What do I need to do from here ? (I already have a "-o content_filter=dksign:[127.0.0.1]:10027" in the submission definition handling signing of outgoing email. ) Also, it appears that this approach may not be ideal as I don't think I can restrict things to only apply this on mail with a certain Subject: header. Am I on the right track here ? Thanks again.