Exchange 2013 CU1 Outlook Web App LogOff with Basic or Windows Integrated Authentication

Hi all,
Exchange 2013 CU1 has a new OWA LogOff behaviour when Basic or Windows Integrated Authentication is configured. When clicking the LogOff Button you receive the message "Close All your Browser Windows.." but OWA does not sign out. This is not the
case when using Formbased Authentication...
The problem in our case is the OWA publishing over the Internet via TMG. When publishing via TMG, only Basic and NTLM authentication is supported. This means you have to change the Authentication for the OWA Virtual Directory to basic or Windows Integrated.
OK so far, now we can use the TMG Authentication Form. but... TMG is not able to Catch the OWA LogOff. So we will still receive "Close all your Browser Settings.." and no log out from OWA.
It is a known issue that TMG cannot catch the OWA Logoff with the Exchange 2013 CU1 Release..So my Question:
Does anyone get that "Real LogOut" fixed via TMG or directly on the CAS Server for Exchange 2013 CU1?
I know another possibility is to activate Form Based Authentication on the CAS Servers and external users directly authenticate against the CAS Server without pre-authentication at TMG Level, but this of course does not provide the highest security
we can have.

Hi SLShare,
As far as I know, if there is no TMG involved, with Exchange 2013 when the user signs out of mail, the authentication tokens are cleared and the user will be presented with the
Login Screen. There will not be a need to click on "Close Window" or any other pop ups that may appear.
Therefore, you may ask the TMG forum about this question and see whether there are still some other workaround we can temporary bypass this issue. For your convenience:
Forefront TMG and ISA Server Forum - TechNet - Microsoft
http://social.technet.microsoft.com/Forums/forefront/en-US/home?forum=Forefrontedgegeneral
Thanks,
If you have feedback for TechNet Subscriber Support, contact
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Simon Wu
TechNet Community Support

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Hi,
Please confirm if the following features are added in your server manager:
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Hi,
I'm trying to setup Office Web Apps integration with Exchange 2013. Office Web Apps are working fine with SharePoint 2013 and the WAC servers are listed as in a healthy state.
When trying to open an office document from OWA I get the usual "Sorry...we ran into a problem. Please try again"
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Hi DJL,
If everything works well except open document via OWA, it seems Exchange server 2013 has been configured correctly.
Please follow me to check Office Web Apps Server settings and Integration.
OWAS settings
1. Certificate:
Come from a trusted CA, include FQDN of OWAS farm in SAN field.
Exportable private key.
Friendly name must be unique within Trusted Root Certificate Authorities store.
2. Farm:
New-OfficeWebAppsFarm with following parameters
-InternalURL is the FQDN of the server that runs OWAS
-ExternalURL is the FQDN so that OWAS can be access on the Internet
-CertificateName is the friendly name of the certificate to be used for HTTPS
3. Explore this URL https://mail.domain.com/hosting/discovery
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Integration
1. Configure OWAS URL via EMS,
Set-OrganizationConfig –WACDiscoveryEndpoint https://mail.domain.com/hosting/discovery
2. WAC stands for Web Access Components.
Check App Log the 140 and 142 Event IDs for MSExchange OWA.
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4. Method to collect logs on OWAS.
Run following command in OWAS powershell prompt:
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More details to refer:
http://www.msexchange.org/articles-tutorials/exchange-server-2013/management-administration/exchange-2013-office-web-apps-server-integration.html
Disclaimer:
Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure
that you completely understand the risk before retrieving any suggestions from the above link.
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