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GhulamMurtaza-2407 asked KaelYao-MSFT commented

Cannot create one of arbitration mailbox (Federation mailbox)-Exchange Server 2010 migration to Exchange 2016

Hi Guys
I need advice.
While installing Exchange 2016 coexistence with exchange 2010. Installation failed after step 10 due to Federation arbitration mailbox. Whenever I try to recreate it from exchange 2010 setup get error message Active directory version you're trying to run is older than the current version. I need advice what to do in this situation?
Thanks

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Hi @GhulamMurtaza-2407

Whenever I try to recreate it from exchange 2010 setup get error message Active directory version you're trying to run is older than the current version.

Are you using the Exchange 2010 iso (setup.exe) to recreate the Federation mailbox and get this error message?
If it is the case, please manually run prepare AD using the Exchange 2016 iso(setup.exe), then have a check in ADUC, would you see the Federation mailbox?


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Hi @GhulamMurtaza-2407

I am writing here to confirm with you how thing going now?
Did the issue get resolved?

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