Forum Discussion
Solved
Exchange Organization Split to muplitple Entra ID
We're looking for information on a project that involve splitting an Exchange organization, due to company spin-off, into 2 indipendent Entra ID tenants. At the moment the exchange on premise is 2 n...
- Exchange 2010 is out of support and Microsoft have actively started blocking mail flow from this version, so you will need to move to at least Exchange server 2016 (2019 is recommended)
This update indicates it's supported by Microsoft: https://techcommunity.microsoft.com/t5/exchange-team-blog/september-2020-hybrid-configuration-wizard-update/ba-p/1687698
This site provides some details on doing it https://technicallypossible.com/index.php/2021/01/01/single-on-premises-exchange-to-multiple-office-365-tenants/
You'll be best to use a 3rd party tool to migrate data from the original tenant to the new divestiture tenant. This type of migration will probably involve some large impacts for the users you are migrating to the new tenant.
- Hello DAN,
thanks for the information, can you confirm also that an exchange 2016 server is not required to make an hybrid configuration with exchange 2010 and exchange online ?
thanks- Exchange 2010 is out of support and Microsoft have actively started blocking mail flow from this version, so you will need to move to at least Exchange server 2016 (2019 is recommended)
