An unnamed reader writes "I have my own domain, which has its own email server, where I receive all my privy email. I've been getting about 800 emails a day, of which perhaps 20 are real. Suddenly, Sunday or Monday evening, the spam pretty much stopped. My volume of mail has plummeted to less than 100 a day, and as far as I can tell, I'm not missing any real mail — I'm still getting the email list subscriptions I'm expecting, and every time I ask someone to send me a test message, it gets through. My domain host insists that it doesn't do any spam filtering before mail gets to my inbox, and that they've changed nothing about their configuration. I run SpamAssassin on my server to mark, but not delete, spam, and program the whole mess to my home client, and I'm still seeing the occasional message tagged by SpamAssassin. But it's not absolutely all gone. And I haven't changed anything at all about my own mail configuration, or the harvestability of my site (my corporeal email has been harvestable for almost a decade). So what's going on? I can't believe that several major botnets would have vanished overnight. Any ideas?"

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