> Also - when you say banned, you're speaking of the "red screen of death" right?

Yes.

> I would love for someone to attempt this in as controlled of a manner as possible.

I'm pretty confident they scanned a URL in GMail to trigger the blocking of my domain. If they've done something as stupid as tying GMail phishing detection heuristics into the safe browsing block list, you might be able to generate a bunch of phishy looking emails with direct links to someone's login page to trigger the "red screen of death".