Welcome to the net. Some ISPs will _NOT_ let you use any other e-mail
address other than a valid one. I know, because I tried. I had to set up
two new accounts, this one, which I never check, and another one, which
I never use on the newsgroups.

My ISP is probably getting a mess of spam and viri packed messages
every day. I honestly tried to mess up the isp (right part after @), but
that bombed as well.

It's their problem. I tried.

Changing your email addy is extreme, why not do the simplest thing and invalidate your email addy like this removethismyname@myisp