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The hybrid migration method facilitates to migrate Exchange mailboxes to Office 365 or migrate from Live Exchange Server to Office 365. Using this approach, organizations can migrate existing mailboxes rather than importing user information to new mailboxes. To execute a remote mailbox move request, you can use migration batches. Before proceeding with the migration, users should check the hybrid deployment pre-requisites.
There is a manual process for migrating Exchange on-premises to Exchange Online using Exchange Admin Center. First, let us know about the requirements of the migration:
Now, the migration from Exchange on-premises to Exchange Online in hybrid deployment is divided into stages.
First, start with creating Exchange remote migration endpoints (it includes proper connection settings for the on-premises Exchange Server running on MRS proxy service).
After that, enable MRSProxy service for the on-premises Exchange 2013 Client Access servers with these steps:
Perform the mailbox migration using these steps:
Note: Likewise, you can migrate Exchange Online mailboxes to on-premises Exchange too.
Once the mailboxes movement has been completed, remove the completed migration batches to avoid any errors when the same user mailboxes are to be moved again. To remove a completed migration batch, perform the given steps:
Go to the Exchange Admin Center and select Office 365 > Recipients > Migrations. Select the completed migration batch and click Delete. Click Yes to confirm the deletion.
With offline access in Outlook on the Web, you can access mailboxes easily when not even connected to a network. After Exchange on-premises to Exchange Online migration, users are required to reset the offline access setting in their browser. It allows using Outlook on the web in offline mode.
Similarly, users can perform migration from Exchange Online to on-premises Exchange in the hybrid deployment.
The above-discussed method is certainly feasible but the risk of data loss. It also may create confusion due to the lengthy and complex process.
But, no need to worry, users can try the professional Exchange migration software like Kernel Migrator for Exchange to perform on-premises Exchange to Exchange Online and vice versa migrations. The multi-functional software offers migration between any Exchange Server versions and between Office 365 and Exchange Server versions. You can perform selective migration using the filter options available.
The hybrid migration between Exchange Online and on-premises Exchange Server through Exchange Admin Center is discussed here. Due to the drawbacks of the manual procedure, users may tend to look out for a reliable third-party solution to migrate Exchange mailboxes to Office 365. So, some light has been thrown on the features of advanced Kernel Migrator for Exchange software.