I am in the process of planning an Exchange 2007 to 2010 co-existence transition and am seeking some clarification on some aspects that relate to the magical and mysterious Autodiscover service
Let me first state that I have done a tremendous amount of reading of various questions posed around Autodiscover in Exchange 2007/2010, on these forums and various other articles/blogs/posts. Despite that, the are certain aspects that still remain unclear.
Some details about current setup:
- Exchange 2007 (all roles on one server)
- CAS internal FQDN: http://cas07.mycompany.local
- OWA url: https://owa.mycompany.com
- ServiceBindingInformation field in SCP for Exchange 2007 CAS:
https://owa.mycompany.com/autodiscover/autodiscover.xml
- Names on SSL Cert: owa.company,com
- Names on legacy SSL cert: legacy.company.com
Note that we do not currently have http://autodiscover.mycompany.com on our SSL cert as have not had need for it. Oulookk Anywhere settings hard-coded into all computers by GPO.
As I understand it, when current Outlook 2010 clients open, they look at the value of the SCP for their CAS (https://owa.mycompany.com/autodiscover/autodiscover.xml). Through this, they receive they use the OAB and the Free/Busy services.
After installing Exchange 2010, the CAS server SCP will of course be the default:https://cas2010.mycompany.local/autodiscover/autodiscover.xml
After entering into the co-existence phase, the Exchange 2007 CAS public URL will be legacy.company.com and the Exchange 2010 CAS public url owa.company.com. I will just be exporting the SSL cert with owa.mycompany.com from the current CAS server to the new one, not buying a new cert.
Following this change, I'm unsure what happens when Outlook clients open and look at the SCP for their CAS, My understanding is that they will continue to usehttps://owa.mycompany.com/autodiscover/autodiscover.xml. As a result of the change, this is now pointing to the CAS 2010 server, although their mailbox is still on the MBX 2007 server. So what happens? Does the CAS 2010 recognise that their mailbox is on MBX 2007 and redirects to the CAS 2007?
I presume will also have to change the value of the CAS 2010 SCP ServiceBindingInformation fromhttps://cas2010.mycompany.local/autodiscover/autodiscover.xml to match the value on the CAS 2007 SCP(https://owa.mycompany.com/autodiscover/autodiscover.xml)?? The former is not named on the SSL cert??
Hoping for some expert assistance here to help my complete the picture.
cheers,
GB