How to delete an account in outlook 365?
How to Sign Out and Remove Existing Profile from Outlook 2016
Remove or delete an email account from Outlook
- From the main Outlook window, select File in the upper left corner of the screen.
- Select Account Settings > Account Settings.
- Select the account you want to delete, then select Remove.
- You'll see a message warning you that all offline cached content for this account will be deleted.