How do I change a hybrid exchange primary server for office 365

lucky alqodar 41 Reputation points

I have 2 hybrid exchange servers for office 365, server A and Server B. If server A power off, then server B cannot migrate users from onprem to office 365. How do I change a hybrid primary server to server B? so that I can migrate with server B with server condition A Power off

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
7,322 questions
Microsoft Exchange Hybrid Management
Microsoft Exchange Hybrid Management
Microsoft Exchange: Microsoft messaging and collaboration software.Hybrid Management: Organizing, handling, directing or controlling hybrid deployments.
1,861 questions
{count} votes

1 answer

Sort by: Most helpful
  1. KyleXu-MSFT 26,206 Reputation points

    @lucky alqodar

    You need to make sure Server B is also published on the Internet. There exists public DNS records (,, MX) point the server B.

    Mark sure MRSProxy is enabled on server B and there exist an admin account hosted on server B.

    Get-WebServicesVirtualDirectory | Format-Table -Auto Identity,MRSProxyEnabled  

    Then you will could rerun HCW to choose server B as the hybrid endpoint.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    0 comments No comments