Microsoft Collaboration Security
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      Teams Domain Collaboration Removal

      This guide will allow an administrator to revoke Teams as a line of communication with the specified domain.

      Role Requirements

      Procedure Scope: Administrators

      Required Group Membership: Admin.Collaboration

      Handbook Reference

      Package: Collaboration Security

      Domain: Teams Connections Management

      Modifies: Sanctioned Teams Collaboration Domains

      Teams Collaboration Domain Removal

      1. Navigate to the Teams Admin Center (Which can be found by accessing the Admin portal, selecting All Apps, and finding the Teams Admin page). Once in the admin center, Select Users | External Access | Teams and Skype for Business users in external organizations | Only Allow Specific External Domains. Locate the domain you wish to remove followed by selecting Remove.
      2.  The entry should no longer be listed, select the Save button to finalize the removal. 

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