It's a tried and true spamming tradition and it's going strong. I see plenty of entries like Envelope-to: <eba615c3c@my.domain> in my reject log. Address

It's a tried and true spamming tradition and it's going strong. I see plenty of entries like Envelope-to: <eba615c3c@my.domain> in my reject log. Addresses that were never used anywhere. Some things just refuse to die.