I`m trying to make working OWA coexistence between Exchange 2013 SP1 and Exchange 2010 SP3 CU5.
When user login in to OWA where his mailbox is located on Exchange 2013 server it logon successful and owa opened. When i try to login to the same url with user whose mailbox is located on Exchange 2010 server i get Error http 50
The website cannot display the page : HTTP 500 »https://URLEXCHANGE2013/owa/auth.owa«
The same is, when i use https:// URLEXCHANGE2013/ecp?ExchClientVer=14
URL on Exchange 2013 are different as fro Exchange 2010.
I even tried to setup Internal URL for Exchange 2010 to bi set to »null ,Saem error
Exchange server 2013 Sp1 is installed on Windows server 2012 R2.