We are a non-profit with about 50 mailboxes currently sitting on a SBS 2008 server running exchange 2007. My plan is to take advantage of the free plan and do a staged migration to test a few mailboxes and make sure everything is working correctly and get a feel for the new setup. After that testing I would then move everyone over to office 365 and hopefully remove the exchange server here in the office just leaving active directory so users can login like they have been.
Looking at this setup I will need to install ADFS 2.0 and this is where I am starting to get concerned. Will this need to be a new server or can I install it on the already existing server that I have. I do also have another server that is running Windows Server 2008 that serves as a file server and backup domain controller that could potentially be utilized.