I've been getting flooded with pump n dump spams for a particular stock symbol, and my feeble admin skills these days are making it difficult to slow. Been using mailspike, spam cop at the mta, and barracuda too.
Here's a sample: http://pastebin.com/Y5q4QTnf What kind of worries me are the low hayes scores. I've been feeding fairly consistent message after message. Also, this part might be off topic but i seem to have headers being cut in half by postfix. (postfix/amavis setup) cheers -- j