Forum Discussion

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

Copper Contributor

Mar 29, 2018

subject

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

NunoAriasSilva

MVP

Mar 29, 2018

Hi Stavros,

Can you test the Autodiscover test to see the problem ?

http://aka.ms/rca

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
- NunoAriasSilva
  MVP
  Mar 29, 2018
  Hi Stavros,
  
  That's the cause, and keep post here how the cause is based on what you found on test autodiscover.
  - Stavros Mavrommatis
    Copper Contributor
    Mar 29, 2018
    So do i have to talk with hostgator or is something that i can do? i am a little bit confused.