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Summary: Exchange administrators can move mailboxes between databases using the Exchange Admin Center or Exchange Management Shell. Both methods are straightforward and minimize downtime. However, consider using Kernel Migration for Exchange – Express Edition for a smoother and more secure migration experience.

Exchange administrators continuously strive to optimize the Exchange infrastructure, a critical endeavor that not only ensures the robust health of Exchange but also mitigates superfluous expenditure on infrastructure resources. When confronted with a burgeoning mailbox database, administrators face a pivotal decision: they can opt to either reduce the Exchange database size or seamlessly migrate mailboxes from one database to another. The chosen course of action hinges on the unique dynamics of your Exchange environment and the intricacies of your data management processes.

How to move Exchange mailbox to a different database?

There are two methods available for migrating Exchange mailboxes: one involves using the Exchange Admin Center, while the other utilizes the Exchange Management Shell. Both of these processes are straightforward and can be efficiently executed by administrators, minimizing the time required for completion.

Using Exchange Administrator Center
  1. To move the mailbox using Exchange admin center, first log in to EAC.Exchange Administrator Center
  2. Under Recipients > mailboxes, you can see all the mailboxes. To move them, click on the Migration on the Migration tab
  3. In the migration, click the (+) icon and select the option Move to a different Database.Move to a different Database
  4. Select the mailbox(es) which you want to move. Then click OK.Select the mailbox
  5. Select the mailbox and click Next.New local mailbox move.Note: You can also choose to use a CSV file to add mailboxes for migration.
  6. Now, you need to create a new batch. Provide a name to the batch and select the target database.create a new batchNote: If you have an archive mailbox in your account, then you can choose among various options like Move primary mailbox or archive mailbox if one exists, Move primary mailbox only, or Move archive mailbox only.
  7. Select the recipient account which will get the report of the migration. You can choose more than one account. Here, you can also choose to start the migration automatically or manually.start the migration automatically or manually
  8. As soon as the migration begins, you can see it listed in the migration category. And to check the migration status, you can click View details option.View details listed in the migration category
  9. After clicking the View Details option, you will see the status of migration; also, you can download the report for the the report for the user
  10. After successful migration, the status of the migration batch will change to Completed.


Exchange administrators can efficiently relocate or replicate a mailbox via the Exchange Admin Center, yet mishandling the process can lead to potential failures. To circumvent such complications, consider harnessing the power of Kernel Migration for Exchange – Express Edition. This tool streamlines the migration into a seamless, swift process, ensuring your mailbox lands securely at its intended destination with minimal steps involved.

Kernel Migration for Exchange