Today I started getting security alerts (see screen shot) when anyone opens Outlook regarding an expired certificate. I logged into our Exchange 2010 server and looked at the certificates (see screen shot) and noticed that two certificates were expired. But our main SSL cert wasn't expiring for a few more months. When I attempted to renew the certificates using http://smtp25.blogspot.com/2009/09/security-certificate-has-expired-or-is.html
I think I made things worse. Before you could just click YES on the Security alerts and Outlook would open and connect. Now Outlook won't even connect giving me a proxy error (see screen shot). So now nobody in my company can connect to email. This is extremely bad!!!
I know very little about certificates. Not sure why our Exchange server has like 10 certificates.
I need the Expert's help on this. If there is any additional information you need that you can't get from the screenshots, please let me know. I have to fix this IMMEDIATELY!!! HELP!!