Uh oh! The new bug in SpamAssassin will cause e-mails in 2010 to be marked with a higher spam score than usual. This will cause legitimate e-mails to be marked as spam. cPanel/WHM users with a dedicated server should apply the patch immediately.

Greetings:

The Quality Assurance team discovered a bug within the SpamAssassin
ruleset that will mark messages sent in the year 2010 (that's today)
and beyond with a higher spam score than expected. This bug can
result in legitimate mail being flagged as spam.

The cPanel Development team has issued a hot fix that will address
this issue and will automatically update the SpamAssassin ruleset to
resolve this issue. If you have automatic cPanel updates enabled, no
further action is required.

If you do not have automatic cPanel updates enabled, you can manually
update the SpamAssassin ruleset by executing the following commands
in a root shell:

/scripts/autorepair spamd_y2010_fix

For a more detailed explanation and information on resolving this
problem on a non-cPanel environment, please review:

Bug 6269 – FH_DATE_PAST_20XX scores on all mails dated 2010 or later.

As always, the entire cPanel team has pulled together to provide a
rapid response to this issue as we realize proper email delivery is
mission critical.

If you need any assistance, our 24x7 Technical Analyst team is
standing by to provide you with further instructions, answers, and
solutions to this bug. To reach them please submit a ticket via:

cPanel Customer Portal

You can also join the discussion on the SpamAssassin bug at SpamAssassin FH_DATE_PAST_20XX 0.0 rule bug - cPanel Forums

Happy New Year,
The cPanel Team