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Victor bassey's avatar
Victor bassey
Copper Contributor
Feb 21, 2018
Solved

Multi Forest Hybrid with ADFS, including one none Microsoft mail system

  Dear community, I am just about commencing an office 365 ( initially exchange online) migration for a global client with 2 AD/Exchange forests and also 2 subsidiary companies that have their sepa...
  • NunoAriasSilva's avatar
    NunoAriasSilva
    Feb 22, 2018

    Hi Victor,

     

    That scenario you must have Trust between Active Directories and you cannot have the same smtp domain across Exchange.

     

    The best way is to consolidate the Exchange in just one Active Directory and then you can have the smtp domain on that.

     

    You can have Exchange with linked mailboxes to other domains using AAD Connect to sincronize them to Office 365.

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