RE: RPC over HTTPS and Outlook 2003

  • From: "Periyasamy, Raj" <Raj.Periyasamy@xxxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 14 Sep 2004 09:07:00 -0400

I hope you have configured your Outlook correctly for RPC Over HTTP.
Before you test the RPC over HTTP across the firewall, try to test it
within the LAN. Follow the steps below to create the profile, and test
this configuration in LAN. Make sure the Outlook is using only HTTPS and
not TCP/IP to connect to Exchange server. You can check this by
Control+right clicking on the Outlook icon in the task bar, and
selecting Connection status. Let me know if this works first before
proceeding further.

On the Exchange Server Settings page, do the following steps:
a.      In the Microsoft Exchange Server box, type the name of your
back-end Exchange server where your mailbox resides.
b.      Select the check box next to Use Cached Exchange Mode (optional,
c.      In the User Name box, type the user name.
d.      Click More Settings.
e.      On the Connection tab, in the Exchange over the Internet pane,
select the Connect to my Exchange mailbox using HTTP check box.
f.      Click Exchange Proxy Settings.

On the Exchange Proxy Settings page, under Connections Settings, do the
following steps: 

a.      Enter the fully qualified domain name (FQDN) of the RPC proxy
server in the Use this URL to connect to my proxy server for Exchange
b.      Select the Connect using SSL only check box.
c.      Next, select the Mutually authenticate the session when
connecting with SSL check box.
d.      Enter the FQDN of the RPC proxy server in the Principle name for
proxy server box. Use the format: msstd:FQDN of RPC Proxy Server.
e.      As an optional step, you can configure Outlook 2003 to connect
to your Exchange server using RPC over HTTP by default by selecting the
check box next to On fast networks, connect to Exchange using HTTP
first, then connect using TCP/IP. 



-----Original Message-----
From: Mustafa Cicek [mailto:mbcicek@xxxxxxxxx] 
Sent: Tuesday, September 14, 2004 9:36 AM
To: [ExchangeList]
Subject: [exchangelist] RPC over HTTPS and Outlook 2003


I think, I configured all (on server and client) for RPC over HTTPS
Unfortunately, Outlook 2003 cannot connect to my Exchange Server 2003. 
It tries to connect over TCP 135 (RCP Port Mapper). I expected that it
tries over HTTP/HTTPS connections. I logged this behaviour per Ethereal
tool on my Outlook client computer.

I have the following network configuration for Exchange Services:
INTERNAL NETWORK with Front-End-Excahneg + Back-End-Exchange + Global

Outlook Webb Access over HTTPS works very well. I have the same
Certificate and the same Common Name for RPC connections.
I tested successfull (403.2 error).

My Outlook client computer has Windows XP with SP2. I uses a proxy from
client network, but NO proxy script on Internet Explorer, only proxy
and address.

I think that is a problem from Outlook 2003?
Can you give me any tipp please!


List Archives:
Exchange Newsletters:
Exchange FAQ:
Other Internet Software Marketing Sites:
World of Windows Networking:
Leading Network Software Directory:
No.1 ISA Server Resource Site:
Windows Security Resource Site:
Network Security Library:
Windows 2000/NT Fax Solutions:
You are currently subscribed to this Discussion List as:
To unsubscribe visit
Report abuse to listadmin@xxxxxxxxxxxxxx

Other related posts: