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Outlook 2010 - Security Alert

Posted on 2011-09-07
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Last Modified: 2012-05-12
We have a newly built Exchange Server. Couple of my users are having this particular issue:

Both the users are running Outlook 2010 Home  Business 2010.  A "security alert" screen is popping up with the following error:

"The name on the Security certificate is invalid".

I can view the certificate and install it ...it says import successful. but it pops up again. Is there anything wrong with Exchange server settings or Outlook 2010 itself? Please advise. Everyone can use OWA fine. Also, Outlook 2007 users are not receiving this error.

Thanks for your advice/help.

 the screen pop up every min the screen pop up every min
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Question by:Byas_Saha
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Crower earned 500 total points
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try this article:

http://support.microsoft.com/kb/940726

"1. Start the Exchange Management Shell.

2. Modify the Autodiscover URL in the Service Connection Point. The Service Connection Point is stored in the Active Directory directory service. To modify this URL, type the following command, and then press ENTER:
Set-ClientAccessServer -Identity CAS_Server_Name -AutodiscoverServiceInternalUri https://mail.contoso.com/autodiscover/autodiscover.xml

3.      Modify the InternalUrl attribute of the EWS. To do this, type the following command, and then press ENTER:
Set-WebServicesVirtualDirectory -Identity "CAS_Server_Name\EWS (Default Web Site)" -InternalUrl https://mail.contoso.com/ews/exchange.asmx

4.      Modify the InternalUrl attribute for Web-based Offline Address Book distribution. To do this, type the following command, and then press ENTER:
Set-OABVirtualDirectory -Identity "CAS_Server_name\oab (Default Web Site)" -InternalUrl https://mail.contoso.com/oab

5.      Modify the InternalUrl attribute of the UM Web service. To do this, type the following command, and then press ENTER:
Set-UMVirtualDirectory -Identity "CAS_Server_Name\unifiedmessaging (Default Web Site)" -InternalUrl https://mail.contoso.com/unifiedmessaging/service.asmx "
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