If you're running SpamAssassin, be aware that it has a rule that's adding points to all mail with a 2010 date.
You can fix it by adding the following to your local.cf and restarting spamassassin. score FH_DATE_PAST_20XX 0.0 See <https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6269> for details. -Tom !DSPAM:4b3e8b8e32711044297984!
