On Tue, 4 Mar 2003, Simon Byrnand wrote:

> >Both on the same box, with some level of spam filtering too - using
> >DNSBLs (light load)  and Spam Assassin (tagging only).

Bah, I meant Spambouncer.

> Whether you use Spam Assassin for "tagging only" or sorting spam into other
> folders, the load is the same. It is the tests that determine if it is spam
> or not which take most of the CPU time.

Yes, and people tend to fail to take it into account.

> Umm, not sure what you mean by /bin/sh based - Spam Assassin is most
> definately Perl based.

See above.

> >Perl based filtering agents have the same (or worse) problem. The
> >startup load for a dozen parallel perl proceses can quickly kill a
> >ramstarved (< 256Mb) machine.
>
> Which is why Spam Assassin gives you the option of using the spamc/spamd
> client server pair.

If you can deal with the security risks. There has already been one
advisory about it. :-(

Messagewall is probably a better overall solution for filtering, it's a
SMTP proxy.

AB


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