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05.14.2008 at 08:58AM PDT, ID: 23401957
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9.1

Outlook cannot connect to Exchange server using RPC over HTTPs

Asked by delinek in SBS Small Business Server, Exchange Email Server, Windows 2003 Server

Tags: , , , ,

Using SBS 2003 R2.

Followed all the standard wizards.

Installed SSL certificate from godaddy.

IE accepts certificate on OWA

When run Outlook 2007 comes up with the error (as http://support.microsoft.com/kb/923575) :

Microsoft Office Outlook
There is a problem with the proxy server's security certificate.
The name on the certificate is invalid or does not match the name of the target site xx.domain.tld
Outlook is unable to connect to the Proxy Server. (Error Code 0)

If I click OK it simply continues to ask for the username and password which I'm entering as DOMAIN\username. It won't 'fail authentication' it just keeps asking for it.

The installation of Outlook here has been setup against other Exchange servers and seems fine. However I did try and use another machine with Exchange 2007 installed and it does the same as above, but without the initial "outlook is unable to connect to the proxy server" error.

I've tried re-keying/installing the godaddy certificate
I've tried a free Comodo certificate
I've tried the certificate that SBS installs as standard (and installed it on the client machine)
I've tried uninstalling and re-installing PRC over HTTP on the server
Tried re-running the "connect to the internet" wizard
Followed the instructions at http://www.petri.co.il/configure_rpc_over_https_on_a_single_server.htm
Have run the file that modifys the registry entries at http://www.petri.co.il/software/rpcnofrontend.zip

Any help greatly appreciated.Start Free Trial
[+][-]05.14.2008 at 09:08AM PDT, ID: 21565665

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[+][-]05.14.2008 at 09:17AM PDT, ID: 21565777

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[+][-]05.14.2008 at 09:27AM PDT, ID: 21565911

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[+][-]05.14.2008 at 09:28AM PDT, ID: 21565918

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About this solution

Zones: SBS Small Business Server, Exchange Email Server, Windows 2003 Server
Tags: Microsoft, SBS, 2003 R2 Standard, RPC over HTTP / SSL / Outlook 2007, ... problem with the proxy server's security certificate ... security certificate is invalid or does not match the name of the target site ... unable to connect to the proxy server ... Error Code 0
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Solution Provided By: otter77
Participating Experts: 3
Solution Grade: A
 
 
[+][-]05.15.2008 at 09:26AM PDT, ID: 21575413

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[+][-]05.18.2008 at 08:29PM PDT, ID: 21595069

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