We have single exchange 2007 server with ~ 150 users 150gb mailstore and public folders 50gb+)
What is the best way to gradually upgrade to exchange 2010 /13?
Does I make sense to deploy 2013 or to go with 2010 as a safe alternative?
1. I have 2008 R2 box ready. what roles should be installed on 2010?
2. How should I configure public folders to coexist? Relocation?
3. What is the best way to move mailboxes?
I would appreciate detailed answer.