[Mimedefang] Filtering idea for stock pump&dumps

[Kevin A. McGrail]

> Looking at a plain text stock pump and dump spam, the idea (good or bad is
> yet to be seen) struck me that if we could get a list of all the stocks
> being traded on the bulleting boards and other minor exchanges, we could
> use that to block this type of spam.  The message in question only hit on
> the Bayes rule, which generated a number of false positives, so it only
> adds 4.5 points, just shy of blocking messages.

Pump & Dump scams often target pink sheets, over the counter and other such 
offerings that make such a list unfeasible.

I've been working for a long time to block these in my ruleset and I wish I 
had a better answer for you.

Regards,
KAM