Forum Discussion

Copper Contributor

Oct 14, 2025

Arbitration mailbox

Issue: Arbitration Mailbox Issue During Exchange 2016 to 2019 Migration. Environment Overview: Mixed Exchange environment: Exchange 2016: EX1-16, EX2-16, DR1-16, DR2-16 Exchange 2019: EX1-19, EX...

Exchange Server

Zohaib_Yousuf

MCT

Oct 15, 2025

Hi,

Run the following commands to identify system and arbitration mailboxes, and then migrate them to the Exchange 2019 mailbox database.

Get-Mailbox -Arbitration | ft Name,ServerName,Database
Get-Mailbox -Database "DB01" -Arbitration
Get-Mailbox -Database "DB01" -Arbitration | New-MoveRequest -TargetDatabase "DB02"