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CarlosMorales's avatar
CarlosMorales
Brass Contributor
Apr 28, 2022

Create Conditional Access Policy

Hi Team. I have a doubt, I have assign MFA for Outlook and Teams clients?   In Conditional Access policy, Conditions - Device platforms - Select Windows. In Client Apps select Mobile apps and desk...
Conditional Access
rahuljindal-MVP's avatar
rahuljindal-MVP
Bronze Contributor
Hi. It sounds about right. Is the CA policy not working for you?
CarlosMorales's avatar
CarlosMorales
Brass Contributor
Apr 30, 2022
It only works in Teams client. In Outlook client not working.
  • Adin_Calkic's avatar
    Adin_Calkic
    Steel Contributor
    Apr 30, 2022

    Hi CarlosMorales ,

     

    This is what I would do. Make sure you use Modern authentication.

    This is not ideal situation with Exchange Online App, but adding Device platfrom - Windows, Client apps - Mobile apps and Desktop clients plus enabling Modern authentication is the closest you can get.

    I just tested in my environment and it will require MFA for Outlook client on Windows (if modern enabled), it does not ask you for MFA on other devices. It will not require MFA in browsers. 

    Good luck

     

     

    Please see below, testing environment with the policy from above.

     

    • CarlosMorales's avatar
      CarlosMorales
      Brass Contributor
      May 01, 2022
      Hi Adin. I really appreciate your answer.
      I have configured the policy as you explain, the results:
      Outlook web doest not request MFA.
      Teams Client if you request MFA.
      Outlook client does not request MFA, not working.

      Thanks,
      • Adin_Calkic's avatar
        Adin_Calkic
        Steel Contributor
        May 01, 2022

        Hi CarlosMorales ,

        thanks for the reply.

         

        Keep in mind that in this particular setup, you have to disable Legacy authentication and enable Modern authentication.

         

        You can accomplish this by additional additional Conditional Access. see below. 

        Also you can do this by disabling Basic authentication from Admin center. 

         

         

  • rahuljindal-MVP's avatar
    rahuljindal-MVP
    Bronze Contributor
    Apr 30, 2022
    Have you tried running your scenario against the whatif tool? Also, you can look at sign-in logs to verify if you have configured the right CA parameters or not.

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