I've been searching around for information on what DNS records are needed internally (and externally) for Autodiscover to work with multiple CAS (Client Access Server).
I have 3 Exchange 2007 CAS boxes and want to make sure that if one goes down, clients can still locate services using autodiscover. Each CAS has its own NAT'd IP address externalls (Internet-facing).
I've found a few articles on records that can be put in place (SRV, CNAME, A), but nothing that refers to multiple CAS. In the past, round-robin DNS entries have been used for such things, but I want to make sure that I have the most high-availability service, without having to put a load balancer in place in front of multiple CAS.
The articles I've found:
Can anyone help me out with what DNS entries I can put in place to handle this? Internal and external (Internet-facing) please, to handle my internal Outlook clients and my remote Outlook Anywhere clients.