Bug Report: https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6269
It turns out that SpamAssassin is adding a score of 3.2 (FH_DATE_PAST_20XX) to all email going through my mail server (Mac OS X 10.6 Server) because of the above bug.
See log:
Jan 1 09:46:36 mail.example.com /usr/bin/amavisd[25021]: (25021-16) SPAM, <opadyoceb8552@superonline.com> -> <scrubbed@joemedia.tv>, Yes, score=11.101 tag=2 tag2=6 kill=6 tests=[BAYES_99=3.5, FH_DATE_PAST_20XX=3.188, HTML_IMAGE_ONLY_32=1.778, HTML_IMAGE_RATIO_02=0.383, HTML_MESSAGE=0.001, MIME_HTML_ONLY=1.457, RDNS_NONE=0.1, SPF_FAIL=0.693, SPF_HELO_FAIL=0.001], autolearn=no, quarantine fydtn7Bx7ffD (junk@example.com)
In the bug the rule is defined in /rulesrc/sandbox/emailed/00_FVGT_File001.cf
however this does not exist on Mac OS X - does any know where this rule is defined on Mac OS X Server? There are no files prepended with 00_ in /usr/share/spamassassin/
which is where I assumed it would be.