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Stavros Mavrommatis's avatar
Stavros Mavrommatis
Copper Contributor
Mar 29, 2018

The security certificate has expired or is not yet valid

Hi Guys,   I am trying to connect my office365 account to my Desktop Outlook 2016 application and i am getting the following message "The security certificate has expired or is not yet valid"  ...
office 365
Stavros Mavrommatis's avatar
Stavros Mavrommatis
Copper Contributor

Thank you Christopher for your answer.

The only connectivity that office 365 has is with my hosting.

I checked again my DNS functions and i believe that are correct.

The autodiscover should be autodiscover.outlook.com if i am right.

Am i missing something here? :)

 

Thank you again

Christopher Lee's avatar
Christopher Lee
Brass Contributor
Mar 29, 2018

When you click the View Certificate button in the warning, what is the subject name that is displayed?

  • Stavros Mavrommatis's avatar
    Stavros Mavrommatis
    Copper Contributor
    Mar 29, 2018

    subject

    CN = mydomainname.com
    OU = PositiveSSL
    OU = Hosted by Hostgator.com LLC
    OU = Domain Control Validated

      • Stavros Mavrommatis's avatar
        Stavros Mavrommatis
        Copper Contributor
        Mar 29, 2018

        Hi Nuno,

         

        The messages are :

        The Microsoft Connectivity Analyzer is attempting to build certificate chains for certificate CN=mydomain.com, OU=PositiveSSL, OU=Hosted by Hostgator.com LLC, OU=Domain Control Validated.

        A certificate chain couldn't be constructed for the certificate.

        and second
        Testing TCP port 443 on host autodiscover.mydomain.com to ensure it's listening and open.

         

        The specified port is either blocked, not listening, or not producing the expected response.

        Thank you for your help

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