Issue
Zoom Outlook Plugin was previously installed succesfully on a Mac running Outlook 2016/2019. The functionality of the plugin is no longer available and it seems to have disappeared from the app's calendar window entirely.
Cause
Microsoft is discontinuing all support for injection-based Outlook plugins (including Zoom's) effective with their May 2021 software update. Microsoft has a support article with additional details.
Resolution
To resolve this issue, uninstall the plugin and install Zoom's newer add-in instead:
- Quit Outlook.
- Uninstall the Outlook plugin by opening Finder, click on Applications, open the ZoomOutlookPlugin folder, and run the Uninstall application.
- Install the Zoom for Outlook add-in.
- Re-open Outlook.
For more information on using Zoom for Outlook add-in, consult the "Related Articles" section on the right.