[Mimedefang] Per domain filtering
Kelson Vibber
kelson at speed.net
Fri Nov 14 12:04:18 EST 2003
At 07:25 AM 11/14/2003, Alain DESEINE wrote:
>I got on a mail server about 15 different domains. For 5 of theses domain
>i need to do antivirus and antiSPAM filtering using spamassassin and
>bitdefender. For the other 10 domains nothing should be done. So is there
>a way to tell mimedefang to do nothing with some domains and to do "some
>filtering" (antivirux + antiSPAM) with other domains ?
filter_recipient would work for this, but it won't handle the case where
you receive a message with mixed recipients (i.e. some in a domain that you
want to filter, some in a domain you don't want to).
You'll need to call stream_by_domain early in filter_begin (check the
mimedefang-filter man page for exact usage). This will cause any "mixed
messages" to be split into a separate copy for each domain, so (a) you'll
know that all recipients are in the same domain, and (b) you can avoid side
effects where settings for one domain influence messages that CC the other.
Also in filter_begin, before you do any scanning but after
stream_by_domain, set a flag like $dont_filter. Then wrap each call to a
virus or spam scanner with "if (!$dont_filter) { ... }"
(Incidentally, you shouldn't write SPAM in all caps unless you're referring
to the canned lunch meat produced by Hormel. If you're referring to junk
email, it should be in ordinary sentence case.)
Kelson Vibber
SpeedGate Communications <www.speed.net>
More information about the MIMEDefang
mailing list