Hi Richard,

Richard Bishop schrieb:
> Has anybody else considered such a system? Any advice on how to go
> about implementing it? Any general comments?

I think you are hit by some of the disadvantages of SpamAssassin (many
rules to maintain, most of the times it is not easy adding user
specific rules). This is one of the reason why I am implementing a
DSPAM plugin for amavisd-new and extending amavisd-new with the
ability to choose a spam filter per user.

With DSPAM you would have just different user profiles for customers
and the best thing is that you don't have to evaluate which words will
not appear in legimate email but just train DSPAM it will learn what
you consider as ham/spam.

Unfortunately my work only progresses slowly as I have many other jobs
to do right now (one of these is my thesis...). I try to get the
infrastructure into amavisd-new 3.4 first (per user spam filters)
before actually implementing the DSPAM plugin (which is quite easy).

If you like to do some Perl hacking, I can give you some pointers
which things need to be done next.

If you need a working system NOW, I suggest you train the SpamAssassin
bayes db using sa_learn. I think that will help much if the filter
rate is "nearly good enough" for you now.

-- 
Felix



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