> Did so many spammers changed their spam technics? What could be done (if 
> possible only with SA's help) to reach my hit rate of 99% again? An update 
> to SA version 2.60 did not change anything :(

I noticed the same starting some time ago (1-2 months as well). I think
spammers have started using new techniques, including:

- Long sequences of random dictionary words in their messages, which
perhaps make it look more "normal" to filters.

- Full paragraphs or sentences from "normal" text, arguably with the
same purpose.

What I did a couple of weeks ago was to finally read the man page for
sa-learn and started training SA's Bayesian filter. Since then, it has
gone back to catching almost all spam, even those using the above
techniques.

I had been manually putting spam in a separate folder, so I just trained
sa-learn against that as spam, and my regular inbox as "ham".

If you have not been training the SA Bayesian filter, give it a try - it
seems to work very well.

--Diego


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