I've tried. I've even contacted him personally. I run my own mail server so you think it should be trivial. A year or two later, he's gotten past my filters aga

I've tried. I've even contacted him personally. I run my own mail server so you think it should be trivial. A year or two later, he's gotten past my filters again. We're talking about 20 years here. I don't understand it but he's got some form of email jujitsu.