y2k10 bug in SpamAssassin

If running 3.2.x version of SpamAssassin... (check with `spamassassin -V`) there is a y2k10 bug in the FH_DATE_PAST_20XX rule, causing all mails getting an extra 3.4 points:

Reference: SA Bugzilla – Bug 6269

The fix mentioned is to update the rules using `sa-update` and restart spamd. The rules in the update directory at /var/lib/spamasassin will get updated.

With the fix applied you should no longer see FH_DATE_PAST_20XX in the logs.

For a manual fix, update /usr/share/spamassassin/72_active.cf and change:

header   FH_DATE_PAST_20XX      Date =~ /20[1-9][0-9]/ [if-unset: 2006]


header   FH_DATE_PAST_20XX      Date =~ /20[2-9][0-9]/ [if-unset: 2006]

Related reading on sa-update: SpamAssassin RuleUpdates

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