I currently have an exchange 2010 server running live on my domain. I started to install exchange 2010 on another server with the idea of migrating over to the new server eventually. I have installed exchange but did not setup any settings. It has been running on my network for about a week. All of a sudden my clients started to direct outlook to the new server automatically. I havent made any changes nor have I set any mailbox settings or anything. I have since stopped the services on that new exchange server. I am not sure why there are starting to point to the new server when its not even configured?