From the home screen, tap Settings.
Tap Mail, Contacts, Calendars.
Tap Add Account.
Enter the account email address and password, then tap Next.
Note: If desired, enter a Description for the account.
The phone will attempt to set up the account automatically.
If the settings are found, tap the desired account synchronization options and tap Save. The email account is now set up.
If this fails, tap the Username field and enter the username.
Enter the domain name and server address (if required).
Note: To verify exchange server settings, contact the email provider or company email administrator.
Set the switches as desired, then tap Save.
The Microsoft Exchange account has been configured.