> has anyone developed a good strategy against spams > that contain a random text and the actual spam in > an image within a multipart/alternative mail? > > Short of entirely blocking mails containing images, that > is.
SURBL, URIBL SURBL is included in SA 3.x, so if you haven't upgraded, this might be a good reason to do so. For SA 2.63, you can get the spamcopuri plugin and install it. Remember it's a patch to SA, so you have to have the right SA version/spamcopuri plugin match. Bret