debug: Score set 2 chosen.
debug: auto-learn? no: inside auto-learn thresholds
debug: is spam? score=0.629 required=6.8 tests=BAYES_00,DATE_IN_PAST_12_24,SARE_ADULT2,SARE_OBFUPORNO
Then the message is tagged "X-Spam-Status: No, hits=0.6".
This is an obvious adult site adv. and SARE rules do a good job. But why the score
is lowered at the end?
because it hit BAYES_00.
You should revisit your bayes training.
If I use spamassassin command line tool for the SAME message, I get very good result: X-Spam-Status: No, hits=6.5 required=6.8 tests=BEST_PORN,DATE_IN_PAST_12_24, SARE_ADULT2,SARE_OBFUPORNO autolearn=no version=2.64
the second time, it did not hit BAYES_ at all. Are you sure you ran it as the same user, thus with the same bayes DB?