Forbid consumer E-Mail Acoounts


has anyone ever had the scenario that exchange online is used, but the users are not allowed to log in with their private account?

I have already blocked *, but then you can only get to the login screen with the business accounts

Does anyone have a solution for this?


  • james.carsonjames.carson Moderator, WatchGuard Representative

    Hi @Talos

    Under most circumstances, if the user can get to the webpage, they'll be able to log into whatever account they want. There are some exceptions to this (google provides some tools that are in the HTTP/S proxies to help control this. However, this is not the case with Microsoft's services.

    -James Carson
    WatchGuard Customer Support

  • edited January 2022

    Hi James,

    please excuse the late reply.

    The solution is an https proxy rule with the destination *
    and in the proxy action a deny for *

    I'll post the solution in the case. Maybe the support can transfer this to the Knowledge Base

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