Stock image spam blocking

[Derek Chee]

Hi,

We've been getting bombarded recently with a lot of the embedded GIF  
image OTCBB stock, pump and dump spam.  The one with the random  
subject, from and sender lines.

Has anybody had any luck creating SpamAssassin rules that would help  
boost the score?  Or better yet a good RBL that blocks them?  For  
RBLs, we only run the Spamhaus lists.  Being a university, we can't  
run a very aggressive RBL list as it would cause too many complaints  
about blocking legitimate email.

-- Derek


Derek Chee (dchee at uci.edu)
Network & Support Programming
Network & Academic Computing Services
University of California, Irvine