Open up the Mail app, and tap "Add new account"
Tap "Add Other Account".
Enter in the information as shown, substituting the "firstname.lastname@example.org" email for your own.
Continue to enter in the email information as shown, again remembering to substitute the "email@example.com" for your own email address.
Fill in your own account name ("Lingo Email" is common, but anything you write in there will work), fill in your name, and tap "Done" to complete setup.