Forum Discussion
Stavros Mavrommatis
Mar 29, 2018Copper Contributor
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"
...
Christopher Lee
Mar 29, 2018Brass Contributor
This looks like it could be a result of being in hybrid where the certificate being presented by your on-premises server(s) for autodiscover may not be valid.
Stavros Mavrommatis
Mar 29, 2018Copper 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