212210header_checks or maildrop?
- Jan 1, 2007Hi
I'm new to postfix (having used qmail for several years). In my old setup
I had maildrop rules that are run on addresses which I use to receive
mailing lists. So for example, for an address that is used solely for
receiving this list, the maildrop rules would check for the presence of
If the check fails the mail is unlikely to have come from the list and is
most likely spam (or a direct reply from someone on the list - which I
don't want) and gets rejected.
What I would like to know is, can something similar be implemented using
postfix's header_checks? My reading of the docs suggests it can't be done
because postfix only processes a single header at a time and makes a
decision per header.
Another thing is I would like to reject mails don't have a "Subject:"
header (or it is empty). Again, because of the way the header_checks are
done I don't think I can check for the absence of a particular header?
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