I'm looking to migrate a very shaky Exchange 2003 (single server, non-SBS) server to Exchange 2010 (single server). I'm considering a traditional coexistence migration, but need a plan B if that is not working out.
What's the upside/downside of just exmerging all of the mailboxes out of Exchange 2003, removing the entire Exchange 2003 organization, doing a fresh install of Exchange 2010, and exmerging the mailboxes back in?
I do understand that my database size will increase as the message/attachements will no longer be linked.
If this is feasible please provide at lease a high level sequence of events to achieve the above.