Every Party Has a Winner and a Loser

Does anyone out there know of a good email provider that actually allows you to retract unread email? You know what I mean, like if you're drunk-emailing (similar to drunk-dialing or drunk ebay-ing), and you later realize that you really didn't want to send what you sent. Or, maybe you aren't drinking, you just aren't thinking first (like I did tonight). Most of the time, I'm calculating, but not enough.

I just sent an email that I know I can't retract, and I think it will make me the loser in this party.