Spamassassin – scoring on DSL lines

Since upgrading to Spamassassin 2.60 yesterday I’ve noticed a (small) increase in false positives. There were only 4 out of 132 spams caught overnight, but almost all were from dsl or dynamic IP addresses. The default score for this test is 2.5, but if you add the following to /etc/mail/spamassassin/local.cf you can change the score:

score RCVD_IN_DYNABLOCK 0 1 0 1

That’ll give it a ‘1’ instead of 2.5 which is probably more reasonable. (Ironically, most of the emails caught were from “Karsten M. Self”, a critic of TMDA, who posts directly from his dial-up machine!)

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