Hi Team,
I am in the phase of upgrading Exchange 2010 to 2013, and introduced 4 MBX and 2 CAS of 2013 servers in co-existence.
Only one production mailbox of 2010 moved to 2013. The owa of the mailbox moved to 2013, is working OK internally coz only internally configured, but when I configure outlook using 2010 settings, it got configured but when I open outlook it doesn't open and throws an error of some "cannot open set of folders".
Is it supported to connect Exchange 2013 Mailbox using Exchange 2010 CAS in Co-existence? because I havnt configured 2013 CAS servers yet.
Kindly share some KB or tip. Any help is appreciated. Thank You.
Muhammad Nadeem Ahmed Sr System Support Engineer Premier Systems (Pvt) Ltd T. +9221-2429051 Ext-226 F. +9221-2428777 M. +92300-8262627 Web. www.premier.com.pk