Email not sending with GitHub login

[danieldeichfuss]

I noticed that I don't receive any emails when using the email() function from the Standard Library. This occurs e.g. with the Basic Usage example in the [docs](https://docs.val.town/std/email/).

I believe this happens because users logging in with GitHub do not verify their email addresses. After I added another email address, verified it, and set it as primary, everything worked perfectly.