To set up another email account:
On the homescreen, tap Settings
Tap Mail, Contacts, Calendars
Tap Add Account...
Choose the type of email account you want to set up. Most personal email accounts will work with Other
Enter your email address and password, tap Next
If your email settings don't exist on the phone, you'll be asked for some extra information. You can check here to see if we have the settings you need for your email. If we don't, you should ask your email provider for this information.
Your new email account will now be set up on your iPhone.