* Jo Rhett <[email protected]>: > So I've been a sendmail admin for 20+ years and never saw any need for > postfix. I was very happy with sendmail and amavisd-milter and amavisd. > However, when rebuilding my colo box I decided to go ahead and learn > postfix, just so I can see how the other half lives ;-) > > First, I found that all of the published recipes for spam containment with > postfix are bogus. They either create back-scatter, or they drop messages > which hit the filter instead of rejecting them in the SMTP session like they > are supposed to. So if something is a false positive, the far side will > never know it happened. Neither of these situations is playing fair to other > parties. > > So I've done some testing and work, and I currently have postfix using > amavisd-milter as a before-queue spam test, which properly rejects spam > during the SMTP session. This solves both of the previous problems and > brings postfix users closer to being a proper mail gateway. I believe very > strongly that this recipe should replace the existing documentation, to > avoid sending new users out to become backscatters.
Agreed. I will expand the documentation as my time permits. There's good reason to keep both approaches. Some countries don't see the need to do pre-queue filtering; they have different ideas of a good [TM] content filter policy. p@rick -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Axel von der Ohe, Marc Schiffbauer Aufsichtsratsvorsitzender: Joerg Heidrich
