Hi! I realize this is an Exchange 2013 forum, however as I do not see any forums for older flavors of Exchange I'm going to post this here. If a better forum exists please let me know and I'll happily move to that forum for my answers.

I am just finishing a migration from Exchange 2007 to Exchange 2013.  In the Exchange 2007 environment I have 2 CCR Mailbox Clusters.  While working to decommission the first of the two clusters I successfully evicted the passive node, however I mistakenly evicted the active node rather than removing it by running the Exchange Setup Wizard as outlined in the TechNet article "How to Remove the Active Mailbox Role from a CCR Environment".

Now, when attempting to uninstall Exchange 2007 using the Setup Wizard in Add/Remove Program I get the following error during the prerequisite check for the 'Mailbox Role':

Error:

Exchange server FQDN was not found. Please make sure you have typed it correctly."

Setup then completes.

Is there a way to cleanly uninstall Exchange 2007 and clean-up Active Directory?

Thanks!

Hello

The ccr cluster resurce is online?
and can ping cluster name?

Hi Jesse,

Thank you for your question.

We could run ADsiedit.msc in run, then navigate

Configuration [<domainController>.contoso.com]> CN=Configuration,DC=contoso,DC=com> CN=Services> CN=Microsoft Exchange> CN=<OrganizationName> CN=Administrative Group> CN=Exchange Administrative Group>CN=Server

We could check if mailbox server is existed in this container, we could remove it.

Notice: Before we remove it, we could make a backup for AD database. We suggest you call MS engineer for help.

If there are any questions regarding this issue, please be free to let me know. 

Best Regard,

Hi.

The CCR cluster no longer exists.  When I evicted the node from the cluster the cluster was eliminated and the Cluster Service was uninstalled from the node in question (something I did not expect to happen).  As it stands, the Exchange server is now a stand-alone mailbox server with no mailbox databases on it.