Outlook 2010 SSL Certificate Alert
Posted on 2011-10-11
We recently installed an SSL certificate on our Exchange 2010 server issued by GoDaddy. However, we are getting the Security Alert popup when Outlook is opened.
The error that pops up when you open Outlook is:
Information you exchange with this site cannot be viewed or changed by others. However, there is a problem with the site's security certificate.
(Green Checkmark) The security certificate is from a trusted certifying authority.
(Green Checkmark) The security certificate date is valid.
(Red X) The name of the security certificate is invalid or does match the name of the site."
The certificate is for mail.mydomain.com, but we added a subject alternate name for the name of the local server and also for autodiscover.mydomain.com.
However, it says it's connecting to VM-Exchange.mydomain.com, whereas we have it just as VM-Exchange, not the FQDN.
You can just click yes and ignore the error, but it pops up every time Outlook is launched. When I click on View Certificate and go to the Details tab, I can see under Subject Alternate Names that VM-Exchange is listed.
My thinking is the error is popping up because Outlook is connecting to VM-Exchange.mydomain.com and we have it added only as VM-Exchange. My colleague says this isn't the problem, but I want another opinion.
Any advice would be helpful.