So I had some issues creating email addresses the other day on a clients Exchange 2007 server. It was giving me the following error "An Exchange 2007 server on which an address list service is active cannot be found." So I thought I would share with everyone how you resolve this issue.. As crazy as it seams this is a very easy fix.

Make sure your logged in as a Domain Admin on your Exchange Server. Goto Services and find the service named “Microsoft Exchange System Attendant” if its stopped Start it.. if its started stop it then start it again. This should resolve the issue.