We are running an Exchange 2013 server. I have received notice from a few users indicating the following. They are running Outlook 2010 clients. They seem to be okay on a Terminal Server and other workstations. So this appears to be workstation specific.
The errors are:
Information you exchange with this site cannot be viewed or changed by others. However, there is a problem with the site's security certificate.
x The security certificate was issued by a company you have not chosen to trust. View the certificate to determine whether you want to trust the certifying authority.
x The security certificate has expired or is not yet valid.
x The name on the security certificate is invalid or does not match the name of the site.
Do you want to proceed.
When I look at the details of the certificate, it says:
Issued to: plesk
Issued by: plesk
Valid from 7/24/2010 to 7/24/2011
When I check the same account from OWA, it shows a completely different certificate. One that is valid till 2017 (this is in fact the correct one). I'm not sure what is happening. Any suggestions?
Thanks in advance.