Maybe some of you have already noticed but the standard Spamassassin rules don't like 2010. As explained in the SA bug 6269 , the FH_DATE_PAST_20XX rule of course matches every incoming mail starting from today .. Ouch. Time to update your rules or change your score for that rule .. I guess that an update of that rule will be available soon (i hope so) and will be fetched by a simple `sa-update` . In the meantime, time for you to fix it manually ! ;-)