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Security Certificate being Revoked in Outlook 2007

Posted on 2011-05-05
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Last Modified: 2012-05-11
Make this simple:
I have two users out of 40, that when they open up Outlook 2007, they receive the following message:

<Server>
The security certificate was issued by a company you have not chosen to trust. View the certifcate to determine whether you want to trust the certifying authority

I have viewed certificate, it points back to server, I have installed in Trusted Root Certiification AUthorities

Nothing happens, still same error.
So, I reissued a new certificate, went on these 2 computers, went and deleted all certificates, installed new certificate

Open outlook 2007, gives same error, click view certificate and it is the old certificate not the new re-issued one.

Any assistance would be great, thanks in advance
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Question by:suttons27
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Expert Comment

by:e_aravind
ID: 35720932
>Those two users are having a different client OS?
When you check on the "Test email autoconfiguration" do you see the difference in the results for the working and failing machines.

My guess would be:
The affected machines would be reaching the CAS server using the URL autodiscover.domain.com while the cert. would be having the value for other san entries.
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Accepted Solution

by:
suttons27 earned 0 total points
ID: 35724658
Thanks e_aravind for responding, I figured it out...it turned out to be I needed to do 1 certificate higher than this one.
Once I installed the Server certificate, this new certificate finally installed.
Issue went away.
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Author Closing Comment

by:suttons27
ID: 35759529
Solution was to install a level higher certificate and then install certificate.
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