Hello
does the coexistence between Exchange Server 2016 and 2019 works in the same (seamless) way like between 2013 and 2016?
In different words, is Exchange 2016 able to proxy client traffic to Exchange 2019 and wise-versa, or is it necessary to switch the client traffic to Exchange 2019 which will then point it to 2016 servers for not yet migrated mailboxes.
Thanks!
VP

