This has been going on for years. As soon as you have posted a emailadress at the web, either at your own homepage or otherwise, robots searc the web, hijack and use your email adress as visible "sender".
Several of my adresses used, and being blacklisted an mass.... I don't care anymore, other than change email when see such ,ails from "myself" bump in.
Got "your" mail as well Bill, but as I use MailWasher, it got dumped before reach my PC. Great software.