[CentOS] Recommend Mail Server
christopher.chan at bradbury.edu.hk
Thu Nov 26 02:24:53 UTC 2009
Thomas Harold wrote:
> On 11/25/2009 6:45 PM, Christopher Chan wrote:
>> Thomas Harold wrote:
>>> We use postfix, dovecot, clamav milter (reject at SMTP time), spf
>>> check (with rejecting on SPF_FAIL at SMTP time), and AmavisD-New w/
>>> SpamAssassin for scoring what's left.
>> Have you looked at spamass-milter too?
> No, I must have overlooked that.
> We're taking advantage of a lot of the amavisd-new features that
> enhance SpamAssassin. OTOH, spamass-milter looks to be a lot simpler
> to configure and would've allowed us to reject the super-high scoring
> spam (>=25.0) during the SMTP transaction.
Heh. Showing guns at 10 over here.
> (I prefer to only reject on bogus HELO names, virus-infected messages
> caught by ClamAV and SPF_FAILs at the moment. Rejecting on a spam
> score is trickier and more subjective.)
> One advantage of amavisd-new is that we could, if needed, move the
> spam scoring off to a secondary internal server and round trip it back
> to the primary mail server. There are some other tricks that
> amavisd-new handles beyond that (such as the policy banks, or the
> ability to boost/lower a sender's email address or a sender's domain
> by a few points instead of outright whitelisting/blacklisting).
Hmm, same with spamass-milter. spamd running elsewhere and accepting
queries over the network. I don't know how much of the rest is supported
by spamassassin rules whether individual or site but I suspect the
latter is doable.
More information about the CentOS