CAS Array and Outlook anywhere profiles

Question

Hello !
I'm planning to set up a CAS array from an existing CAS server. I red that after changing RpcClientAccessServer parameter, users Outlook profiles would not be updated automatically for internal users, but I was wondering if it could work for external users
using Outlook Anywhere ? We have no internal user (since our Exchange environment is in a datacenter).
Thanks

Answer 1

Hi,
After changing the RpcClientAccessServer parameter, all clients including Outlook Anywhere users will lose connection without any configuration update.
For more information, you can refer to the following article:
http://blogs.technet.com/b/aljackie/archive/2013/11/14/outlook-rpc-end-point-and-pf-the-microsoft-exchange-administrator-has-made-a-change-that-requires-you-quit-and-restart-outlook.aspx
“To add further on the CAS array, the Outlook clients with an existing Outlook profile would continue to use the old RPC endpoint rather than the new RPC endpoint (even though Autodiscover detected the change). This is because the old RPC endpoint does not
return an ecWrongServer response to the client. The RPC endpoint accepts the connection; therefore, Outlook ignores the Autodiscover response because it has a working connection.”
We can recreate profile or move database to resolve the issue.
Best regards,
Angela Shi
TechNet Community Support