I want to leave my current exchange server 2003 machine (windows server 2003 in a domain environment) intact, allowing users to continue using that server for mail, etc.
However I want to TEST a different server 2008 machine running exchange 2007 (or possibly 2010).
Ideally I want to be able to copy over all the exchange user information, mail, calendars, etc. ?
If it all goes smooth I will plan an actual replacement migration/transition.