Just a story to share. I was the victim of a "Joe Job"--in which a spammer uses random addresses at my domain as return addresses. I received about 2,800 emails--mostly saying "Returned Mail" in various ways--over the course of an hour. Between SpamSieve and some hand- crafted filters in PowerMail, all but about 20 ended up in my spam box. I can only imagine the havoc this could have caused if they had ended up in my In-Box.
Alan
