Outlook 2013 connected to Exchange Online starts generating SSL security warnings

Two separate installations of Outlook 2013 today started generating SSL security warnings.

Here is the equivalent warning in English:
http://kb.mit.edu/confluence/display/istcontrib/Outlook+2013+and+2010+SSL+Cert+Solution

Both Outlook installations have the same account linked to Office365. 
The only recent change to this account is in regard to OneDrive. The OneDrive Software was downloaded from the Office365 site and installed on _one_ of the machines. 

Office365 forums points to Outlook forums for help on this.

http://community.office365.com/en-us/f/148/t/263614.aspx

What do Outlook expertise have to say about this?

cheers

Erik

My Outlook versions:




  • Edited by ola_erik Wednesday, September 24, 2014 2:38 PM
September 24th, 2014 5:09pm

Hi,

Based on my research, seems this is a known issue and our product team are working on it.

A workaround for this is to create the below registry:

HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\AutoDiscover

DWORD: ExcludeHttpsRootDomain

Value: 1

HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\AutoDiscover

DWORD: ExcludeHttpsAutoDiscoverDomain

Value: 1

Hope this helps.

Regards,

Steve Fan
TechNet Community Support

Free Windows Admin Tool Kit Click here and download it now
October 9th, 2014 3:23am

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