hotmail
I'm pretty sure you have to have a paid account to do this. At least my free one only allows me to forward to other msn accounts
try this
This is how it works:
1. Visit http://join.msn.com/
2. Click on "Hotmail for mobile phones".
3. Read the information thoroughly! Also the pricing part.
4. Now click on "register now" and after that click "register now" again.
5. Chose your mobile operator and fill in your mobile phone number.
6. Finish the rest of the sign-up process. Don't check the boxes for Hotmail alerts and MSN alerts!
7. In the sign-up settings specify to NOT receive any SMS alerts for Hotmail messages. Leave the other settings to stay as specified in your Hotmail account.
8. Finish the subscription. You'll now receive an activation SMS with a 4 digit code. Enter this code on the activation page. This is the only sms you'll receive and pay through your mobile carrier.
9. After the subscription visit your Hotmail account with your web browser. Now go to "options"=>"more options".
10. In the section "Customize your mail" go to option "mobile alerts for new messages" and make sure the option "None. Never send me mobile alerts" is selected. You will never receive any alert sms by setting this option so you will stay free of charges! Press save.
11. In the section "Manage your account" visit "Forward mail to another e-mail account".
12. Fill in any e-mail address you want you Hotmail to be forwarded to, for instance your Gmail account. Press save and confirm the setting by clicking the link in the e-mail that has been sent to the specified e-mail address. The setting has now been accepted by Hotmail!
13. Configure your Gmail or other mail account on the iPhone (if you haven't already done so) and receive your Hotmail messages on the iPhone!
Have fun!
Attention! If you make a wrong setting, you might receive mobile sms alerts and it'll cost you!
Pay attention to what you're doing. It's your responsibility to make the right settings!
For me it works perfect and it's free
I'm pretty sure you have to have a paid account to do this. At least my free one only allows me to forward to other msn accounts