How to Rename Exchange Server Mailbox Databases

Steps to rename the default exchange server database as per the naming convention used through your organization. There are two (GUI and Exchange Management Shell).

Rename a Exchange database with PowerShell

Get mailbox database name

In our example, the name of the unique database is Mailbox Database 0124243238.

[PS] C:\Windows\system32>Get-MailboxDatabase

Name                           Server          Recovery        ReplicationType
----                           ------          --------        ---------------
Mailbox Database 0124243238    mbx             False           None

Rename mailbox database

Rename the default mailbox database with Set-MailboxDatabase cmdlet.

Set-MailboxDatabase "Mailbox Database 0124243238" -Name "DB01"

Verify that the database name changed.

[PS] C:\Windows\system32>Get-MailboxDatabase

Name                           Server          Recovery        ReplicationType
----                           ------          --------        ---------------
DB01                           mbx             False           None

Rename Exchange Server 2019 Database using EAC

Login to Exchange Admin Center and select the servers tab and select the Databases tab and select the database then double click to Edit.

Click general in the left pane and change the name of the Exchange database. Click Save.

Confirm that the default mailbox database in Exchange Server is renamed.