On 2005-04-25 13:22:07 +0200, Erwan David wrote: > Le Mon 25/04/2005, Jon disait > > Do you consider it better than using procmail and spamassassin? > > I do not know. I use postfix and clamsmtp. The problem with procmail > is that it works at delivery level and may have lost some envelope > information.
The main difference from my point of view is that milter lets you check
the mail before it is accepted by the MTA. So with milter you can simply
reject a suspicious mail and let the sending MTA handle it. If you use
procmail (or many of the other anti-virus packages) you have to accept
the mail first, and then have to decide what to do with it:
* pass it on to the recipient (bad if it contains a virus)
* simply drop it in the bitbucket (bad if it was a false positive)
* send a bounce-message to the return-address (bad if the return-address
was forged, as it almost always is with viruses).
IMO milter (and similar techniques - I use qpsmtpd) are vastly superior
for this reason, and should be used where possible (virus checking is
easy - spam detection is a lot harder, because you need per-user
configurations on the MX).
hp
--
_ | Peter J. Holzer | Weil wir die materielle Welt nicht so
|_|_) | Sysadmin WSR | wahrnehmen, wie sie ist, sind Sachen wie
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__/ | http://www.hjp.at/ | -- Heiko Schlenker in drsm.
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