On Jun 1, 2005, at 10:22 AM, Bill Moran wrote:
Bart Silverstrim <[EMAIL PROTECTED]> wrote:
I've been looking into ways of improving our spam filtering.
Currently
I'm running postfix with amavisd-new (spamassassin and clamav), and
saw
an article on greylisting using postgrey. Turns out there's a port
for
it already in FreeBSD.
I am still googling for info, but as I understand it the policy will
inject the message to another queue for postgrey to evaluate? If this
is true, what happens if I install it while still running the
postfix/amavis solution, which is also a double-queue system for
evaluation of messages? Will doing a make install for postgrey damage
the installation we currently have in place and working?
Anyone else running postgrey with amavis on postfix, on FreeBSD? I'd
appreciate any feedback/experiences people have to offer.
Yes, I'm running Postgrey with Amavis on FreeBSD. Works great.
The short answer is that Postgrey plays nice with Amavis.
The medium-length answer is that Postgrey simply becomes another check
that is run. Postfix has a "policy service" hook that allows Postfix
to consult with an outside program prior to accepting mail. This is
a different process than the multi-queue system that Amavis uses, and
the two co-exist nicely. Postgrey works more like the rbl checks than
the multi-queue system that Amavis uses.
The long answer is contained in the technical details of Postfix, and
the Postfix source code, and I won't attempt to duplicate that here ;)
Are there instructions you know of for the installation to get postgrey
to integrate with postfix from ports on FreeBSD? (Huh?)
Um...let's rephrase. Is there a reference of what needs to be done
after running "make install" in the postgrey port directory to get
postfix to see it and use it, preferably without killing the working
amavisd?
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