I am running v9.2.1 with Spam Blocker. There have been no changes on the system for many months - except the standard automatic updates.
Everything is working fine *except* I have seen obvious spam message being allowed through to the mail server. The most recent one looked like this:
Subject: Best online pharmacy providing all your RX med needs!
Cialis will ensure that you never go soft in bed again
There was no effort made to obscure the subject or the content - it is the most blatant type of spam. This message scored a 2.5 on the Spam Filter. I have another implementation of Spam Assassin on my MDaemon mail server where it received an 8.8 score. There have been no custom rules added. The load on UT should be low and it is has plenty of CPU horsepower.
Seems like I started seeing one or two a day starting about a week ago. Any ideas why a message like this would be allowed through?