In Exchange Server environments, the Arbitration Mailbox is a special system mailbox used to store system-related data such as approval workflows, moderation data, and audit-related information. After a new Exchange Server installation, these system mailboxes must also be moved to the new server. Otherwise, arbitration and related system processes will continue to rely on the old server.
The process of moving the Arbitration Mailboxes can be managed using the following PowerShell commands.
Run Set-ADServerSettings cmdlet, including the -ViewEntireForest parameter. It will let you view the objects in the entire forest. Next, get the Arbitration mailbox.
Set-ADServerSettings -ViewEntireForest $true
Listing the Arbitration Mailbox
First, the Audit Log mailbox in the environment is checked:
Get-Mailbox –Arbitration
Moving the Arbitration Mailbox
The New-MoveRequest cmdlet is used to move the Arbitration mailbox to a new Exchange Server or a new mailbox database
Get-Mailbox –Arbitration | New-MoveRequest -TargetDatabase “NewDatabase”
Check the Transport Status
Get-Mailbox –Arbitration | Get-MoveRequest
Get-MoveRequest | Get-MoveRequestStatistics
Clearing Completed Transport Records
Get-MoveRequest -MoveStatus Completed | Remove-MoveRequest -Confirm:$False
