OutlookAnywhere - MAPI Mail Store endpoint - attemped to ping failed

Question

Hi,
I have a DC (Server 2012 R2) setup, with RDS and EXCHANGE (with MS Exchange 2013 SP1) as virtual servers.
RDS is facing the internet (mail.domain.com @ Port 443), and is using ARR with URL Rewrite for OWA, EWS, Autodiscover, ActiveSync and ECP, rewriting all requests to EXCHANGE.
When I run tests on https://testconnectivity.microsoft.com for Outlook connectivity, it fails saying:
Attempting to ping the MAPI Mail Store endpoint with identity: [email protected]:6001.
       The attempt to ping the endpoint failed.
        Tell me more about this issue and how to resolve it
      Additional Details
The RPC_S_SERVER_UNAVAILABLE error (0x6ba) was thrown by the RPC Runtime process.
Elapsed Time: 3310 ms.
Telnet from DC or RDS into EXCHANGE on port 6001 works fine.
However, I am concerned that there may be two things preventing this from working:
1) [email protected]:6001 <-- shouldn't this be trying to connect to mail.domain.com:6001 and not domain.com?
2) Even if there is nothing wrong with the above, I would assume it is using RDS's standard 443 port, and trying to ping 6001 on RDS itself, since as far as I know, URL Rewrite has no rules to forward port requests on to exchange.
Am I right in my assumptions?
              

Answer 1

Exchange 2013 uses GUIDs for profiles, so your item 1 looks okay to me.
That error doesn't mean that ExRCA can't ping 6001, it means that the RPC-over-HTTPS proxy server can't ping that port on the back-end server.  I would first make sure that all your names are correct in your configuration, and that all services are
running.
Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."