This is using a co-exist of MS Exchange 2013 and2016 Exchange Organization. Both Exch servers are multi-role. Exch2k3 server has been installed and working for the past 3 years. Exch2k16 server was newly-joined 2 months ago. All user mailboxes have been moved to Exch2K16. Mail sending/receiving and other exchange operations are working fine.
Now, we want to disjoin and decommission this Exch2k13 server. How to do it properly? My experience on removing exch2k10 was rather scary, as uninstalling didn't turn out smoothly. Most of the time, I have to "force" uninstall.
Thanks in advance.