To REMOVE the existing mail account:
Step 1 of 5
Open Outlook and click the SETTINGS icon in the upper left. (3 horizontal lines)
Step 2 of 5
Click the GEAR icon at the bottom left.
Step 3 of 5
Click on your ATFT email account. (It may not be named ATFT mail but it should be the only account in the list.)
Step 4 of 5
Click DELETE ACCOUNT at bottom of screen.
Step 5 of 5
Click DELETE again to confirm.