[JMac]

A little baffling as to how this one spammer has suddenly started getting through my spam filter.

I am using the Fastmail "Normal" Spam Protection setting. My Spam Bayes Status is:
Num spam learned: 3785
Num non-spam learned: 17535
Bayes database used: user

Since September 2, 2014 I have received 57 total messages from this spammer, with spam scores ranging from 7.5 to 34.1. Now suddenly I received email messages from them on 11/24, 11/29, and 12/1 scored as 3.7, 2.3, and 0.0 respectively. So naturally I had to manually report them as spam. But how and why is this spammer suddenly scoring so low?

Oddly enough, the header for the message today scoring 0.0 has a line that says:
spam-known-sender: yes

which you would think would be factored in somehow.

Any thoughts?

Thanks!

Jim