BB Torch :: Text To Email Address Not Working?

I have a Blackberry Torch 9800 and my OS is V6.0.0.723. My carrier is AT&T.I am having issues trying to send a TEXT MESSAGE to an EMAIL address. I do not have a data plan.I have a friend that sends me emails from his PC to my CellNumber@txt.att.net and I received them as TEXT MESSAGES. I then reply to that same TEXT MESSAGE and he receives it in his email on his PC.But when I try to send (not just reply) a new TEXT MESSAGE to his EMAIL address, it fails. I get a little red clock for a while, then nothing.I have spoke to AT&T and they say it should work.My friend is also on AT&T, and he too does not have a data plan, and he sends TEXTS to his EMAIL address all the time without challenge. He does not have a Blackberry.