Operating System: iPhone 3G
Application: Mail
1. If you don't have any mail account setup, you can
directly open "Mail" at desktop. New account setup guide will be shown.
If you already has mail
account but need to setup another one, please go to Settings > Mail,
Contacts, Calendar.

2. Choose Mail program and select "New Account"
Fill in information
accordingly:
Name Any_Name
Address user@YourDomain.com
Password
Password of user@YourDomain.com
Description user@YourDomain.com

==> Save.
3. Choose IMAP or POP.
Incoming Mail Server:
Host Name: mail.YourDomain.com
User Name: user@YourDomain.com
//not user
Password: Password of
user@YourDomain.com

4. Setup outgoing Mail server
Outgoing Mail Server:
Host Name: mail.YourDomain.com
User Name: user@YourDomain.com
//not user
Password: Password of
user@YourDomain.com

5. Save all the setting. Then your phone will verify IMAP/POP
account information.
6. After a period of time, when you see pop up message
"Cannot Connect Using
SSL, Do you want to try settings up the account without SSL?", please
choose Yes.

7. The verification speed may vary and you may need to
wait up to few minitues. Once it's done, you can see a new account under
"Mail, Contacts, Calandars."