How to publish Outlook Anywhere 2007 using TMG 2010 ?

Hi All,

I'm having problem in publishing the Outlook Anywhere on my Exchange Server 2007 SP1 with TMG 2010 Standard

The error log:

Checking the IIS configuration for client certificate authentication.
 	Client certificate authentication was detected.
	AdditionalDetails
 	[b]Accept/Require client certificates were found. Set the IIS configuration to Ignore Client Certificates if you aren't using this type of authentication[/b].

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In my current setting (see the attached powersheel result)

I have successfully published Exchange Activesync using TMG 2010 externally by using KCD security single Publishing rule and Single Listener (Activesync only because my TMG 2010 only have one NIC attached) and the Exchange Server 2007 CAS is the same machine of course.

I can't add another listener to the publishing rule just for Outlook Anywhere.

Any help and guidance will be greatly appreciated.

Thanks.

"OutlookAnywhere"
Server      Identity                           SSLOffloading ClientAuthenticationMethod IISAuthenticationMethods
------      --------                           ------------- -------------------------- ------------------------
ExCAS02 ExCAS02\Rpc (Default Web Site)          True                      Basic {Basic}                 
ExCAS03 ExCAS03\Rpc (Default Web Site)          True                      Basic {Basic}                 

"AutodiscoverVirtualDirectory"
Server      Identity                                    InternalUrl ExternalUrl InternalAuthenticationMethods    ExternalAuthenticationMethods    BasicAuthentication DigestAuthentication WindowsAuthentication
------      --------                                    ----------- ----------- -----------------------------    -----------------------------    ------------------- -------------------- ---------------------
ExCAS02 ExCAS02\Autodiscover (Default Web Site)                                 {Basic, Ntlm, WindowsIntegrated} {Basic, Ntlm, WindowsIntegrated}                True                False                  True
ExCAS03 ExCAS03\Autodiscover (Default Web Site)                                 {Basic, Ntlm, WindowsIntegrated} {Basic, Ntlm, WindowsIntegrated}                True                False                  True
ExCAS02-DR ExCAS02-DR\Autodiscover (Default Web Site)                           {Basic, Ntlm, WindowsIntegrated} {Basic, Ntlm, WindowsIntegrated}                True                False                  True

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IIS 7.0 settings

Autodiscover
	Authentication Enabled: Basic, Windows
	SSL Settings: Require SSL, Require 128-bit SSL
		Client Certificates: Ignore

Microsoft-Server-ActiveSync
	Authentication Enabled: Windows
	SSL Settings: Require SSL, Require 128-bit SSL
		Client Certificates: Ignore

Rpc
	Authentication Enabled: Basic
	SSL Settings: (None checked)
		Client Certificates: Ignore

RpcWithCert
	Authentication Enabled: (None Enabled)
	SSL Settings: Require SSL, Require 128-bit SSL
		Client Certificates: Ignore

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