To remove a delegate in the Outlook Desktop App for Mac, do the following:
- In Outlook, click the Outlook menu (upper left, next to the Apple menu).
- Choose Settings.
- In the Settings menu, click Accounts.
- Click the Delegation and Sharing button.
You should see listed anyone you’ve added as a delegate. Highlight their name(s) and then click the minus (-) sign to remove them from your list.
Click OK.