Don't worry, it's like many "cute" restrictions -- they didn't do a good job. Just capitalize your email and it'll sail right through. It's also only checked on

Don't worry, it's like many "cute" restrictions -- they didn't do a good job. Just capitalize your email and it'll sail right through. It's also only checked on registration, so you can continue to use the lowercased version to login. It's without the tiniest sense of irony one will observe the "Signin with Google" button on the login form, too :-/ ed: although I may have ruined it for everyone, since my "team name" is now "GMAIL.COM" :-P "team": { "id": 29, "name": "GMAIL.COM", "tier": "Free" }