Use the instructions below to remove an Exchange account on your Android device. These steps apply to devices running Android 2.2 or above.
Note: Each Android version might be slightly different and it is likely that the Exchange account will show up as a Corporate Account.
Go to Applications > Email. The Email screen will open.
On the Email screen, bring up the settings menu and tap Accounts. The Accounts screen will open.
Press and hold the Exchange Account you want to delete until the Menu window opens.
On the Menu window, click Remove Account. A Remove Account warning window will open.
On the Remove Account warning window, tap OK or Remove Account to finish. You have successfully deleted your Exchange account.