Turn Add In Off For Outlook For Windows. How to Disable Add-ins Outlook. Allow scheduling for private meetings must be enabled in the Microsoft Teams admin center for the add-in to get deployed.

In the new Mac interface add-ins are not currently available but you can enable them by switching to the old interface as described here. In Outlook 2010 and 2013 in the Outlook Options dialog box click Mail in the left bar then click the Editor Options button under Compose messages section. Here you have to click on the three dots displayed next to each installed add-in and choose to remove it.
Use the options on the toolbar to add more add-ins uninstall an add-in or refresh the page to see a list of the latest.
How to Disable Add-ins Outlook. Enable private meetings. If you are using Outlook 2007 please click Tools Options. This opens Outlook on the web.