Forum Discussion
GaryBurch
Oct 18, 2023Copper Contributor
ECP on Exchange 2019 Server doesn't run without an Exchange 2016 Server
I'm in the same situation as I'm sure many others are, migrating from on-prem Exchange 2016 to MS 365, then wanting to replace the on-prem Exchange 2016 Server with an Exchange 2019 Server just for r...
Thierry_Chapuisat
Oct 19, 2023Brass Contributor
Hi GaryBurch
Did you move all the Arbitration/System and used user mailboxes form 2016 to 2019?
Also, you can check the backend certificate "Microsoft Exchange Server" on Exchange 2019 IIS on port 444.
GaryBurch
Oct 19, 2023Copper Contributor
I haven't moved any mailboxes to the 2019 server, I don't plan on even running a database on that server (or, do I have to keep arbitration mailboxes still).
I haven't done anything with the back end certificates on either server. What am I looking for on there, just that the cert is valid?
I haven't done anything with the back end certificates on either server. What am I looking for on there, just that the cert is valid?