Forum Discussion
Jerry Meyer
Aug 07, 2017Iron Contributor
Migrate Exchange Hybrid Server to other domain
Hi, At a customer we have migrated almost all of the mailboxes from two different domains to One Office365 tenant. Now that we are almost done we are looking into the posibilities of migrating the Hybrid server to another AD domain. Is there anyone who has experience with this and can give me some global steps or recommendations on how to do this?
Currently we have 10 Exchange Cashub servers and 1 Hybrid server. This is represented in domain A. The Users are in Domain B (our new AD Domain) and had Linked mailboxes to the exchange environment in domain A. All the mailboxes have been moved towards Office 365.
The users are currently synced from Domain (mail resource domain) A and Domain B (New user domain) towards the Office 365 tenant. I hope someone can advise me. For additional info please let me know
Hi Jerry,
You have to Setup a new Installation of Exchange Server on Domain B.
After instalation of the new Exchange Setup, you have to Uninstall Exchange on Domain A and then Run the AD Connect Again to discover the new Exchange and after that changes you Have to setup a new Hybrid Configuration Wizard on Exchange on Domain B.
- From a hybrid perspective - do you plan to leave any users or resources in Exchange on-premises? Or is the hybrid "server" purely for GUI management of Exchange Online users?
- Jerry MeyerIron ContributorThe Hybrid server will only be used to manage users in Exchange online. All users will be moved to Office 365
Hi Jerry,
If you just want to manage the users in Exchange Online and you want to keep Exchange Hybrid, you have to keep only one hybrid server connected to your Office 365.
You have to migrate the rest of the mailboxes that you need to migrate to Office 365 than Install other Exchange on the other domain an turn it hybrid. Note: You have to change your configuration of your AD Connect to acomplish that.