[Asrg] Where to filter? (was Re: Limitations of filters)

["David F. Skoll" <dfs@roaringpenguin.com>]

On Thu, 6 Mar 2003, wayne wrote:

> False positives can also be very expensive.  Reduction in bandwidth
> and hardware costs by aggressive and early filtering may be penny wise
> and pound foolish.  IF the MUA has a good spam filtering system, it
> may be most cost effective to let a lot of questionable email through
> to it.

Actually, the better solution is to implement per-user filtering on
the mail server.  It's a heck of a lot cheaper to upgrade software
on one or a few servers than supply lots of users with new MUA's.

And if a user is dialing up long-distance to pick up e-mail, he/she
will appreciate systems that trap suspect mail on the server for review
rather than forcing it all to be downloaded first.

--
David.
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