exchange 2010 to exchange 2019

Question

hello
i currently have an on premise exchange 2010 , i am looking to replace it with exchange 2019 on a vm
i am not looking to update the same server , how can i migrate all to the new exchange and decommission the old one ?
i need a step by step guide if possible

Answer 1

Hi @tarek H

Exchange 2010 cannot be upgraded to Exchange 2019 directly.
You may need to first migrate to Exchange 2013 or Exchange 2016(recommended) and later migrate to Exchange 2019.

The general steps would be:

1. install a new Exchange server (Exchange 2013/2016 with latest CU version) in the current environment to have it coexisting with the Exchange 2010 server.
2. configure the virtual directories URLs and install certificates on the new server
3. update scp, DNS records to point to the new server
4. migrate all the mailboxes(including arbitration mailboxes) to the new server
5. turn off the old server for a few days to see if there are some problems with mail flow, client access
6. decommission the old server

Later you may need to repeat the steps to migrate from Exchange 2013/2016 to Exchange 2019.

For the detailed steps by steps guide, please use this Microsoft tool: Exchange Deployment Assistant
After you input the required information, it would guide you on the whole process.

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