I have an IIS ARR server which points back to my exchange server. OWA and ECP work perfectly fine.
I have set it up with the following guide:
http://blogs.technet.com/b/exchange/archive/2013/07/19/reverse-proxy-for-exchange-server-2013-using-iis-arr-part-1.aspx
The only thing that is not working is Outlook connectivity (both internally and externally).
I get the following error message on the MS connectivity test:
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RPC Proxy can't be pinged.
Additional Details
An unexpected network-level exception was encountered. Exception details:
Message: The remote server returned an error: (401) Unauthorized.Type: Microsoft.Exchange.Tools.ExRca.Extensions.MapiTransportException
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I tested the exchange server direct (i.e. without ARR) and it works as expected. I think it has something to do with the credentials not being passed between ARR and the exchange server because if I am on the local network, I can go straight to the exchange server / rpc (via https://servername/rpc) and it prompts for credentials once and gives me a blank page (expected) whereas if I go via ARR it prompts for credentials but doesn't accept them (just prompts again and again and again).
Anyone manage to fix this issue?
Thanks.