A few months ago we added an Exchange Server 2010 to our at that time two Exchange Server 2003 (one regular server and one for OWA) environment. Once we had the Exchange Server 2010 up and running we moved everything off of the Exchange 2003 Servers. We then shutdown those servers and everything has been fine. Last month we brought the servers up to uninstall them as was unable to do so. We received the following messages:
It is acting as the default store for one or more Mailbox Stores or Users
It is used by one or more Admin group to maintain system folders
It is used by one or more Offline Address List to maintain system folders.
The only users that were left on the server were system users. So we shutdown the 2003 servers and removed them from the domain. Everything has continued to work just fine. My question is can we just remove them from ADSI Edit? I have attached the screen shot of ADSI Edit in the Configuration Container that we would be removing it from. Thank you!