We have recently seen a huge uptick in spam from a bunch of different TLD's. Bayes has been a little whacky with them as well. Our install is 3.3.1 (we're going to be replacing it soon).
I'm looking to implement a rule that will assign a higher score to specific TLD's. I tried the rule below based upon the guidelines from https://wiki.apache.org/spamassassin/WritingRules. Nothing seems to hit it though. header HS_BAD_DOMAIN From =~ /^\.(top|study|click|party|link|stream|info|trade|bid|xxx)/i describe HS_BAD_DOMAIN Contains one of the bad domains that commonly spams score HS_BAD_DOMAIN 0.1 0.1 0.1 0.1