If you have ever sent anything from your phone to your email, use the phone email. Here in the US(I don't know if you're in the US), but in the US, its usually your phonenumber@something.com (Obviously, you put YOUR phone number in the phonenumber section and whatever it says at the end when you send something to your email at the something.com section. I don't know if this helps, but I'm trying.
Here's a Dashboard widget that will do it. Looks like you have to pay for this one, but I think I remember seeing a free one in this list somewhere as well.