Exchange 2010 - 2003 Coexistence
Posted on 2013-10-22
I have a pretty basic configuration:
Exchange 2003 standard running on a 2k3 DC
Exchange 2010 standard running on a 2k8 member server
2k3 is called: er1.mydomain.com
2k10 is called: er-exchange.mydomain.com
external url is: mail.mydomain.com
Both servers are talking back and forth to each other, but I am having a problem understanding coexistence for external access.
I was under the impression that if I swing mail.mydomain.com to point to the 2k10 server ( and modified the owa virtual server on 2010 to redirect to 2k3 ), that the 2k10 server would correctly proxy the user to his/her correct mailbox ( be it on the 2k3 or 2k10 server ).
But in reading various docs, they all indicate that I need a legacy url and a "new" url, each pointing to their respective servers for this all to work. That is where I get hung up.
So my question:
can I just swing mail.mydomain.com to point to the 2k10 server, set the redirects in virtual server, and then be good to go with both owa and activesync for mobile devices?