Can't ping him through an e-mail account. That just pings the email client's server. BUT, we can stuff his in-box!
DON'T send these jerks e-mail from your personal accounts though. Sign guys like this up through third parties using a fictitious name and their e-mail address instead of your own. This one thinks he's safe, because he doesn't change addresses. I've managed to trace the name "Flotrucker" to a couple of forums where someone using that name has posted in the past, both having to do with souped up "buzz-bomb" Honda cars, and the predominant language is French.