Hi

SBS 2011 std/Exchange 2010.

I have setup OA as below.

remote.domain.tld is also the url for RWW and to which the SBS security certificate is bound.

I can't get Outlook to connect remotely from outside the SBS domain. My Outlook setup is below;

I do get a login box so its partially working;

But the credentials fail and I get 

Under HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\Rpcproxy the key ValidPorts already had the underlined in the following. Rest was added by me. 

SBS-SERVER:593;SBS-SERVER:49152-65535;SBS-SERVER:6001-6004;SBS-SERVER.sbsdomain.local:6001-6004

I seem to be able to telnet to remote.domain.tld over ports 6001, 6002 and 6004. When I do

telnet remote.domain.tld 6001

I get;

ncacn_http/1.0

I can ping remote.domain.tld but not remote.domain.tld:6001

Where I can find what is blocking the connection?

Thanks

Regards

• Edited by Y a h y a Saturday, August 01, 2015 4:14 AM

I would suggest you to test the connectivity through www.testconnectivity.microsoft.com and see what's wrong in the configuration

Hi

I get below from Outlook Connectivity test.

Thanks

Regards

	Attempting to ping the MAPI Mail Store endpoint with identity: remote.domain.tld:6001.
	The attempt to ping the endpoint failed.
	Additional Details   The RPC_S_SERVER_UNAVAILABLE error (0x6ba) was thrown by the RPC Runtime process. Elapsed Time: 3289 ms.

Hi

Below ports are open;

Discovered open port 25/tcp on 999.999.999.999
Discovered open port 80/tcp on 999.999.999.999
Discovered open port 1723/tcp on 999.999.999.999
Discovered open port 443/tcp on 999.999.999.999
Discovered open port 110/tcp on 999.999.999.999
Discovered open port 6004/tcp on 999.999.999.999
Discovered open port 5003/tcp on 999.999.999.999
Discovered open port 5090/tcp on 999.999.999.999
Discovered open port 6002/tcp on 999.999.999.999
Discovered open port 6001/tcp on 999.999.999.999


PORT STATE SERVICE VERSION 
25/tcp open smtp Microsoft Exchange ESMTP 
80/tcp open http Microsoft IIS httpd 7.5 
110/tcp open pop3 MS Exchange 2007 pop3d 
443/tcp open ssl/http Microsoft IIS httpd 7.5 
1723/tcp open pptp Microsoft 
5003/tcp open filemaker? 
5060/tcp closed sip 
5090/tcp open unknown 
6001/tcp open ncacn_http Microsoft Windows RPC over HTTP 1.0 
6002/tcp open ncacn_http Microsoft Windows RPC over HTTP 1.0 
6004/tcp open ncacn_http Microsoft Windows RPC over HTTP 1.0 

Here is the latest error I am getting;

Thanks

Regards

• Edited by Y a h y a Sunday, August 02, 2015 4:50 AM

Hi

I get below from Outlook Connectivity test.

Thanks

Regards

	Attempting to ping the MAPI Mail Store endpoint with identity: remote.domain.tld:6001.
	The attempt to ping the endpoint failed.
	Additional Details   The RPC_S_SERVER_UNAVAILABLE error (0x6ba) was thrown by the RPC Runtime process. Elapsed Time: 3289 ms.

Hi Yahya,

Thank you for your question.

The issue could be caused by the following factors:

1.        Failures in DNS name resolution
2.        Missing or invalid ValidPorts key in the registry of the Internet-facing Exchange 2007 Client Access server or of the Exchange 2003 server
3.        Exchange services not listening on the required endpoints
4.        Firewalls blocking the required ports

How to troubleshoot it, we could refer to the following link:

https://technet.microsoft.com/en-us/library/dd439392%28v=exchg.80%29.aspx

Notice: this is a link which is about Exchange 2007 and Exchange 2003, but it also apply to Exchange 2010.

If there are any questions regarding this issue, please be free to let me know.

Best Regard,

Jim