We have Exchange 2007 set up on 5 CAS servers (3 different geographical locations). Two of the servers are Front End servers for OWA.
Clients are a mixture of 2010 and 2007.
If I name the sites A B & C
Outlook clients with their mailbox at Site_A using the Scheduling Assistant can see Free/Busy info for users whose mailboxes are at site A & B but not C
Similarly, Clients at site B get Free/Busy info from site A and B but not C
Clients at site C get Free/Busy info for all three sites.
This situation is the same also if clients connect through OWA.
We have noticed also that Outlook Clients in site C are not able to set their Out of Office.
Attached is a file generated by the get-ClientAccessServer | Select name, *internal* |fl
For the sake of site anonimity I have renamed the server names and domain name.
Any help would be appreciated