This is using a Ms Exchange 2007 Server, with CAS, Hub and MB initially, in MS Windows 2003/2008 AD domain environment. Recently, I setup and join 1 MS Exchange 2013 (on Windows 2012 r2) to the organization. Integration looks okay as normal mail flow not affected. Now, i want to have the co-existence between 2K7 and 2K13, as I need to move 95 mailboxes to the 2K13 Exchange server. I have did some of the preparations for co-existence, such as, create a new SSL Cert (from Exch2K13 EAC) to be assigned to both Exchange servers, check the mail flow (currently, only exch2k7 allows to send), send and receive connectors, namespaces (with new legacy.xxx.xxx assign to exch2k7), and others.
I know that the tricky parts are on the owa and outlookanywhere, in which Exch2k13 not more support RPC. If I were not wrong, Exch2K13 server can indeed proxy the client connections to Exch2K7 server. Can anyone show step-by-step on how to make these proxying/redirections work?
Thanks in advance.