Anecdotal, but I've seen lazy/clueless developers in some companies who allow only a .com email address to be provided. And this was a few years ago. I don't re

Anecdotal, but I've seen lazy/clueless developers in some companies who allow only a .com email address to be provided. And this was a few years ago. I don't recall the name. I'm not going to do any business with such services.