I find a cheap company sending me spams often. He uses this tactics to name his sender address as, for instance, [email protected], [email protected], .. [email protected], [email protected], [email protected], .. etc.. So I create a postfix content filter as following: ----------------------- Filter: Header Filter Regexp. Pattern: cheapguy[0-9]+@freemail\.com Data: Action: Reject ---------------------- but it can still pass. What should I do to block him? Also, what should I place in the "Data" field actually?
