most email being blocked by all my Fortigates

EDIT:  This seems to have cleared up.  I've been able to re-enabled "Spam Submission" and it's working correctly.  Must have been a bad definition update or something.

Just a heads up.  All of the fortigates at my client's that do spam filtering are blocking almost all email as spam right now.

It seems to be the “Spam Submission” feature.