I should be very grateful if anyone can assist me.
My organisation currently has four Exchange servers, one front-end 2003 running Outlook Web Access in our DMZ, one back-end running 2003, and two 2010 servers in a DAG both running the Mailbox, Client Access, and Hub Transport roles.
I'm trying to setup Outlook Web App to work with the Exchange 2010 servers, and want to use one FQDN to access one server, and then the second, should the first one fail. I've setup a cname entry in our DNS to redirect traffic sent to mail.domain name to server1.domain name, but how can I redirect traffic to server2 if necessary.
I've read a lot about Outlook Web App, but can't find any reference to using it with a DAG.
In addition, I know that in Exchange 2010 you shouldn't have a Client Access Server in the DMZ, but is there any problem having the Client Access Server and Mailbox Server running on the same machine?