I am looking for direction on removing exchange 2010 for our network. We have used the Codetwo tool to migrate our users to office365 accounts. Because of hardware requirements, we were not able to use the hybrid deployment as our Exchange server resides on the Domain Controller that holds all of the FSMO roles. Note, this is the only server on the network. We had a sbs2003 server that was updated to a new server box running 2008r2/exchange 2010 sp3. This Migration was done according to Dmazter's blog for the migration steps. And worked well. After many starts we discovered the Azure DirSync tool had could not run on this server as it was running too many roles.
So now we have active office365 not linked to the local domain. So with exchange 2010 sill operating we can not use our office365 accounts on premises until we remove the exchange server. because the share a domain name.
1) how to cleanly remove all traces of exchange locally. (its all on one server)
2) can i then perform a domain rename locally to get rid of .local and change to .org
3) if the local ad server (which is the only server in the building currently ) changes to the .org domain that is in use with office 365 will this cause any problems.
4) completely starting over is not an option as import account programs use this machine as well.