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users are able to add third party Gmail accounts etc in their MS Teams call.

Saurabh Singh 26 Reputation points
2022-10-13T11:35:29.21+00:00

I have turned off external users with teams accounts not managed by an organization can contact users in our Organization.

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users are still able to add third party Gmail accounts etc in their MS Teams call.

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Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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Microsoft Teams Development
Microsoft Teams Development
Microsoft Teams: A Microsoft customizable chat-based workspace.Development: The process of researching, productizing, and refining new or existing technologies.
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  1. Vasil Michev 100.2K Reputation points MVP
    2022-10-13T15:59:13.3+00:00

    Those are different functionalities mate, the "external access" settings do not apply to Guest users. To restrict guest access too, switch to the tab above, Guest access: https://admin.teams.microsoft.com/company-wide-settings/guest-configuration

    2 people found this answer helpful.
  2. SokiGuo-MSFT 25,751 Reputation points Microsoft Vendor
    2022-10-14T06:48:15.6+00:00

    Hi @Saurabh Singh
    I agree with the above, this is about the settings for guest access. If you want to turn off guest access, you can follow the method below to set up.

    1. Sign into the Microsoft Teams admin center.
    2. Select Users > Guest access.
    3. Set Allow guest access in Teams to Off.

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    For more details about turning guest access off, you could refer to this article.

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    1 person found this answer helpful.