邮件被禁用时允许发送测试邮件？

[codinghorror (Jeff Atwood)]

@pfaffman

It turns out mail is disabled, and the mail test silently fails. Nothing in logs, nothing in skipped. I was just writing a mean note to Mailgun when I figured out how it was my fault.

Hmm yeah we should add an explicit warning here @sam can you assign this out?