You guys are getting too technical. The solution is simple. Only subscribed members should be allowed to post, and if the spammers start emulating our return addresses then make it IP based. With that said, new subscribers should have to be verified by the list admin before they're allowed to post.
But if you want to play with filters go ahead. Steve -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/