On 11.12.08 15:47, Mark Martinec wrote:
> Quality of bayes auto-learning improves if you let all your mail
> pass through SpamAssassin:
> 
> - outbound mail is often a high-quality source of ham
>   for autolearning;

But when one of your users starts spamming (trojan or wtf), you have problem
and can drop the BAYES DB imediately...

> - blocking at MTA by RBL or other techniques (such as graylisting)
>   is efficient and effective, but deprives SpamAssassin of spam samples,
>   so if your resources permit, it is better to let SpamAssassin deal
>   with all RBLs.

I don't think so. We get "enough" of spam even if using many RBLs at SMTP
level.
-- 
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