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Authentication with subdomains against o365 RRS feed

  • Question

  • Hello.

    I have a problem with configuration of ADFS against o365 authentication.

    We have 2 ADFS 3.0 servers that are authentication our users against Office365 and that works fine.
    The problem is that we have multiple subdomains in our environment and all those subdomains are maildomains.

    Something like below.
    contoso.com <--our primary domain verified and federated
    dev.contoso.com <- subdomain also verified and federated.

    Now for all of our users when having UPN at contoso.com it works fine to login to o365 but if we change UPN to dev.contoso.com
    they can't login and we get this error.

    Correlation ID: a2f2def2-8f66-4659-b75e-2809bc295c7d
    Timestamp: 2016-11-17 09:27:30Z
    AADSTS50107: Requested federation realm object 'http://dev.contoso.com/adfs/services/trust/' does not exist.

    Thursday, November 17, 2016 10:38 AM

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