I have upgraded spamassassin on three mail  (2.63 -> 3.02 on two and
2.64 -> 3.02 on the other) servers about two weeks ago.

On the old system I have disabled AWL and Auto-learn because they
corrupted my bayesian database on at least one occasion.

I have decided to try out AWL with 3.02.

At first I did not use any extra rules but installed the following
after a week:

70_sare_bayes_poison_nxm.cf  
70_sare_html2.cf
99_sare_fraud_post25x.cf
70_sare_html0.cf 
70_sare_html3.cf     
evilnumbers.cf
70_sare_html1.cf
70_sare_html_eng.cf

I have experienced less false positives with the new one.  Complaints 
came down from about 6 per week to maybe 1 in the last two weeks.

But the feedback from users about spam received increased and the
following statistics shows that something is not working as
effectively as it was previously:

Average spam blocked per minute for the last
        
        Day     Week    Month   Year (Since April-June last year)
mail1   5.94    6.21    7.67    8.20
mail2   5.04    5.95    6.48    6.69
mail3   4.95    4.67*   6.23    6.85

*  mail3 was down for a few hours during the week.

The three servers started out with the same bayesian database and are
trained with the same spam/ham on a nearly daily basis.


I am suspecting AWL to be the culprit but I am not sure how to
determine it other than switching it of for a period.

Any commentary?

Regards
Johann
-- 
Johann Spies          Telefoon: 021-808 4036
Informasietegnologie, Universiteit van Stellenbosch

     "I was glad when they said unto me, Let us go into the 
      house of the LORD."          Psalms 122:1 

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