Testing

Keep it simple Stupid,

"Generally it's safe to compose mail from gmail and Yahoo
It's usually OK to send via www.gmail.com or mail.yahoo.com."
It is not possible to send it, is what I am saying. It wastes your time by allowing you to compose it though. Why? This is my problem. Instead of letting the user know it is not going to be posiible to send it, it gives you a chance to waste your time.

So, you test and send mail to yourself.