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different mail domains being DirSync'd from a single AD domain

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  • I have a lead who has a BPOS environment with many different mail domains being DirSync'd from a single AD domain.  Can  they plan for federation with Office 365?
  • Hello Esther,

    Currently, you can only federate one domain with an ADFS farm.  If they want their users to login with just one domain, that'd work fine.  If they want to let everyone use their mail domains to login, then they'll need a separate ADFS farm to federate each domain.  I believe there's an update coming out that'll let ADFS federate multiple domains, but for the time being this limitation applies.  That said, if everyone logs in with the same domain then there's no problem, they'll be able to federate easily.

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