I am setting exchange 2013 server , it will be in same subnet as present exchange 2007 server.
we have a proxy server which directs OWA, autodiscover , active sync url to our present exchange 2007 server ( CAS server_
we have separate 2007 mailbox server.
1) does exchange 2013 server being installed on same subnet can create any issues with exchange 2007 servers which are in production now.
2) how exchange 2007 will talk to exchange 2013 or how validation will work
3) how we can create legacy url's also do we need to create separate urls for exchange 2013 ( like owa, active sync , autodiscover) at same time.
4) is there any command shell I can use to find how many users are using OWA in exchange 2007?