Does this help? http://blogs.technet.com/b/exchdxb/archive/2012/05/10/troublshooting-autodiscover-exchange-2007-2010.aspx
From: [email protected] [mailto:[email protected]] On Behalf Of Daniel Chenault Sent: Thursday, August 21, 2014 11:28 AM To: [email protected] Subject: [Exchange] FQDN for OL from Autodiscover This is driving me nuts; I thought I had a handle on this. I inherited this (poorly documented) environment. Via Autodiscover internal Outlook clients are configured with a server FQDN of OutlookUS.<domain> and this works fine. In the other AD sites the OL client is configured with OutlookEMEA.,domain> etc. Where in the hell is this set? I've been through the Server objects under Server Config:Client Access and nowhere do I see Outlook<sitename>.
