Here's an ACL that works for me stopping a LOT of stock spam
drop mime_regex = Symbol\: [A-Z]{4}\nCurrent Price\: Around
message = REGEX - Stock Spam - H=$sender_fullhost - S=$h_Subject: -
F=$h_From: - T=$h_To:-- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
