We are trying to upgrade our 2010 Exchange to 2013 Exchange but install tells us that 2003 Exchange cannot be on our domain. We used to have 3003 Exchange but someone uninstalled it but parts of uninstall failed. How can I remove the recognition
of 2003 Exchange in our 2010 Exchange manager? It shows 1 Exchange 2003 server but we want to remove that server from our domain. Thanks.
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