If you want to configure that only specific users have access to the Microsoft Teams or Outlook Email integration, please follow these instructions: .
Microsoft Teams
As an admin, please visit the Microsoft Teams admin center.
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Read the Microsoft Documentation
Outlook Email
Depending on which add-in you plan to use, there will be multiple options.
Office Add-in:
To grant apps access for specific users, please check our documentation.
COM Add-in:
If you want to distribute this add-in to your users manually, please follow this instructions.