Procedure 1 – Remove Account from iPhone with Default mail app

To REMOVE the existing mail account:

Step 1 of 5

From the home screen, tap Settings.

Step 2 of 5

Tap Mail, Contacts, Calendars.

Step 3 of 5

Tap the Exchange or other email account to remove.

Step 4 of 5

Scroll down and tap Delete Account.

Step 5 of 5

Tap Delete from My iPhone to confirm.  Note that other types of iOS devices will display similar confirmation notices.

 Procedure complete! Click here to move on to procedure 2.