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Failed Outlook Connectivity Test

Posted on 2014-10-06
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Last Modified: 2014-10-11
I am running an Outlook Connectivity test using the Microsoft Remote Connectivity Test and it seems to fail on the last test. We are running Windows Server SBS 2003. Does anyone have any suggestions?

The HTTP authentication test failed.
       
      Additional Details
       
An HTTP 403 forbidden response was received. The response appears to have come from IIS6. Body of the response: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAD><TITLE>You are not authorized to view this page</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=Windows-1252">
<STYLE type="text/css">
BODY { font: 8pt/12pt verdana }
H1 { font: 13pt/15pt verdana }
H2 { font: 8pt/12pt verdana }
A:link { color: red }
A:visited { color: maroon }
</STYLE>
</HEAD><BODY><TABLE width=500 border=0 cellspacing=10><TR><TD>

<h1>You are not authorized to view this page</h1>
The Web server you are attempting to reach has a list of IP addresses that are not allowed to access the Web site, and the IP address of your browsing computer is on this list.
<hr>
<p>Please try the following:</p>
<ul>
<li>Contact the Web site administrator if you believe you should be able to view this directory or page.</li>
</ul>
<h2>HTTP Error 403.6 - Forbidden: IP address of the client has been rejected.<br>Internet Information Services (IIS)</h2>
<hr>
0
Comment
Question by:mail2clk
  • 9
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12 Comments
 
LVL 25

Expert Comment

by:Mohammed Khawaja
ID: 40364151
This is caused if you have IIS configured to reject connections from specified domains or IPs.  There is a good document from Microsoft which explains this:

http://support.microsoft.com/kb/248043

Follow the document and add required domains/IPs to the allowed list (or remove them from the reject list).
0
 

Author Comment

by:mail2clk
ID: 40364519
I am now down to one error

       
Not all the required authentication methods were found.
Methods Found: Basic
Methods Required: NTLM
HTTP Response Headers:
MicrosoftOfficeWebServer: 5.0_Pub
Content-Length: 1656
Content-Type: text/html
0
 

Accepted Solution

by:
mail2clk earned 0 total points
ID: 40364588
If I choose basic as the authentication method then the error is


      Attempting to ping the MAPI Mail Store endpoint with identity: server.mydomain.local: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: 3037 ms.
0
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LVL 25

Expert Comment

by:Mohammed Khawaja
ID: 40364590
Go to IIS and change Authentication from Basic to NTLM.
0
 

Author Comment

by:mail2clk
ID: 40364600
with NTLM

       
      Additional Details
       
Not all the required authentication methods were found.
Methods Found: Basic
Methods Required: NTLM
HTTP Response Headers:
MicrosoftOfficeWebServer: 5.0_Pub
Content-Length: 1656
Content-Type: text/html
Date: Mon, 06 Oct 2014 20:03:17 GMT
Server: Microsoft-IIS/6.0
0
 
LVL 25

Assisted Solution

by:Mohammed Khawaja
Mohammed Khawaja earned 2000 total points
ID: 40364604
Sorry, leave both Basic and Windows Authentication enabled.
0
 

Author Comment

by:mail2clk
ID: 40364615
This is the error I received

Attempting to ping the MAPI Mail Store endpoint with identity: server.mydomain.local: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: 3312 ms.
0
 

Author Comment

by:mail2clk
ID: 40364636
I changed the valid ports to 100-6100

Open Registry Editor on the Client Access server or on the front-end server, and verify that the ValidPorts registry value exists under HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\Rpcproxy. Also confirm that the key includes the NetBIOS and FQDN for all mailbox servers and for each required port (that is, for ports 6001, 6002, and 6004).
0
 

Author Comment

by:mail2clk
ID: 40364637
Troubleshoot name resolution, and verify that the server acting as the RPC proxy can correctly resolve the internal fully-qualified domain name (FQDN) of the mailbox server or of Exchange 2003.

I can ping and do a nslookup on server.mydomain.local
0
 

Author Comment

by:mail2clk
ID: 40364648
To test endpoint connectivity, open a Telnet session on the Client Access server or on the front-end server, and then Telnet to each port on the mailbox servers (that is, on ports 6001, 6002, and 6004).

I can telnet to these ports from a client computer
0
 

Assisted Solution

by:mail2clk
mail2clk earned 0 total points
ID: 40364719
I managed to resolve the issue by following the article below.

 http://social.technet.microsoft.com/Forums/exchange/en-US/be2e134b-9334-47ca-90cc-2c5ac19a6c43/exchange-outlook-anywhere-does-not-work?forum=exchange2010


HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\RpcProxy



Value name: ValidPorts

Value data: ExchangeServer :6001-6002; ExchangeServerFQDN :6001-6002; ExchangeServer :6004; ExchangeServerFQDN :6004


Note:   * ExchangeServer should be the NetBIOS name of Mailbox server.

   * ExchangeServerFQDN should be the fully qualified domain name (FQDN) of Mailbox server.
0
 

Author Closing Comment

by:mail2clk
ID: 40374569
It solved my problem.
0

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