We have a client running a domain network with exchange email on an old HP server running 2008 SBS. We are about to replace that server with a new one running 2011SBS. We have the flexibility to not have to try and migrate from one server to the other and would prefer to start again with a clean slate but recreate manually the users (20 or so), email addresses, shares and security groups e.t.c.
My main question is, would it be o.k. to give the new server the same internal domain name as the old one (the old one would never be switched on at the same time as the new one) and if I did is there an advantage or any disadvantages? Or would it be smarter to choose a whole new domain name? Would I still have to remove PC's from the "old" domain and join it to the "new" one and if so would that in itself cause issues as the new domain is the same name....