I didn't notice this until, but `email.com` is a "real" domain. We should use either email.test (or anything.test), example.com, or some other suitable domain from RFC6761.

For reference:
https://tools.ietf.org/html/rfc6761#section-6.2
https://tools.ietf.org/html/rfc6761#section-6.5

@mfalesni Aside from this one issue, I think this is certainly ready to go. Feel free to merge after you fix this line.