1. Find and tap on the "Settings" icon
  2. Scroll down and tap on "Mail"
  3. Tap on "Accounts"
  4. Tap on the Email Account you want to remove. It may be labelled as "Exchange", "Jennian", "RBS" or "Milestone"
  5. At the bottom of this next screen tap on "Delete Account".  When prompted, tap on "Delete from My iPhone"
    Please Note: It may take up to 5 minutes for the account to be deleted