Applying a content filter to a specific email address in Postfix

Question

How can I apply a content filter to a specific email address in Postfix?

Setting the content_filter parameter in main.cf applies the content filter to all inbound messages. I only want to apply my filter to a specific address, e.g. support@example.com.

I've defined my filter in master.cf using the pipe command as follows:

myfilter unix   -       n       n       -       -       pipe
     flags=Rq user=filter argv=/usr/bin/myfilter -f ${sender} -- ${recipient}

I'm using Postfix 3.1.4 and I'm not using virtual mailboxes.

out of the box I am not sure you can do that with postfix. You can use policyd (https://wiki.policyd.org/accesscontrol) but it requires third party software — natxo asenjo, Sep 05 '17 at 17:59

score 1 · Answer 1 · answered Sep 06 '17 at 06:58

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The classic way of doing per email address processing of mail is to use procmail

answered Sep 06 '17 at 06:58

ptman

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score 0 · Answer 2 · answered Sep 13 '17 at 09:17

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The classic way of doing per email address processing of mail is to use maildrop

answered Sep 13 '17 at 09:17

bgtvfr

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Why duplicate the other answer a week later? – ptman Jul 05 '21 at 03:58

Applying a content filter to a specific email address in Postfix

2 Answers2