I have been using SpamSieve for about 2 years and love it.
However on the 17/12/17 it completed stopped filtering. I can still train spam however when I review the Logs I can see the last spam removal or predicted email (good or bad was on the 17). I was actually away on holidays when it stopped working (computer left running) so nothing changed in my local setup.
The last change was on the 15th when I installed OS 10.13.2. However still seemed to work on the 16th and then nothing.
Any help would be great as inbox filling with crap now SpamSieve is not working.