Well, it took a while, but I have a spamless life. My setup is now rather unbelievable; mail to me goes to a domain forwarder, which sends it to a mailbox. A Linux system beside my desk grabs mail from that mailbox, and runs it through a spam filter, SpamAssassin. It then reforwards good mail out to another mailbox, where I then pick it up. The extra processing takes about a minute or two — but I’m suddenly in the situation in which only 1 or 2 spam messages a day sneak through, compared to hundreds a day before. I’ve got additional procedures in place to guard against “false positives”, so that I can make sure I’m not losing important messages. But it is truly wonderful!