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Can I sync three separate domains on 3 separate sites to one O365 tenant?


I have a company with a single domain which is using AD sync to a single O365 tenant,  He has just acquired another two companies each with their own domain and on prem exchange,

He wants the other two new companies on the same tenant, keeping their original domains.

Can I install the AD sync tool on each of the new DCs and sync their user accounts with the single tenant? And then put each of the exchange servers into hybrid mode and migrate mailboxes?

ExchangeMicrosoft 365Active DirectoryAzure

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8/22/2022 - Mon