First I'd call up @Streko (he's an accessible dude and super nice) and say "hey mike here is what I want to do". If he can't assist I'd scrape his site, but it seems logical he'd assist here for a small fee, he is a business after all. If he wouldn't assist it's because this tactic is suspicious and subject to insane scrutiny. Not something I'd personally do. *sent from iPhone.

I don't know any tool that does it for e-mail nor can I logically think how it's even possible since e-mails aren't publicly displayed, but let's say you have at minimum one social media account registered username, you can see all the other ones that they may own.

The tool is http://knowem.com/ ..

Good luck.