All image spam

[Jack Gostl]

I've seen some references to this in threads, but I didn't see an answer.   Starting in late November, we started getting hit with spam that was almost entirely a jpeg. They seem to be mostly "stock recommendations". There is minimal message, usually HTML, and the real spam content is in the image. Despite al the trainging that I do, this seems to slip through the Bayes algorithms with no more than a 50%, and the rest of the tests don't drive the score up high enough to help.   I am currently running SpamAssassin 3.0.3. I tried running these messages through SpamAssassin 3.1 and it doesn't seem to help.   Any suggestions?   Thanks - Jack