Mx1 is restored with spamassassin.  It appears an update failed to complete properly, probably because I had left a test-updates repository enabled and it grabbed an update that was broken.

     This has been fixed, the server is restored to service and now spamassassin is operational on both mx1 and mx2.

     I am in the process of replacing these servers because spammers have adapted to old versions and can often sneak by.  Working on new servers based upon the latest and greatest so it will at least slow them down until they adapt again.