
Microsoft Lumia 640 XL
Find "email+accounts"
Slide your finger down the display starting from the top edge of your phone.
Press ALL SETTINGS.
Press ALL SETTINGS.
Press email+accounts.
Delete email account
Press and hold the required email account until a pop-up menu is displayed.
Press delete.
Press delete to confirm.
Return to the home screen
Press the home icon to return to the home screen.