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Exchange 2013 Decommission

Ibrahim AlHusari 191 Reputation points
2022-05-19T13:35:45.843+00:00

Dears,

I have one exchange 2019 server and 2013 server in co-existence mode, I also have HCW installed on that exchange 2019 with exchange online, my plan now is to remove the exchange 2013 server completely, can I simply decommission the exchange 2013 now????
kindly note that I have turned off the exchange 2013 for 2 weeks and I did not face any issues?

Regards,

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.

Answer accepted by question author

Andy David - MVP 160.3K Reputation points MVP Volunteer Moderator
2022-05-22T15:01:37.327+00:00

Enterprise is the server version. There is no such thing as "co-existence mode". :)

Yes, if everything is moved over to 2019, you can remove the 2013 server. If you forgot something, the uninstall program will catch it.

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  1. Andy David - MVP 160.3K Reputation points MVP Volunteer Moderator
    2022-05-19T13:37:49.567+00:00

    Yes, but ensure you have moved the arbitration mailboxes to the 2019 server 

     get-mailbox -arbitration | new-moverequest -targetdatabase <NewDB>

    If you have a send connector, remove the 2013 server as a source server
    and recreate any custom receive connectors on the 2019.

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