Hey Everyone,
I have a couple of users that are receiving the following error message when opening outlook. Just so you know we are a on-premise Exchange 2013 environment using windows 2012 servers. I have done some research and have not found anything on the net related to this specific error.
Error message: "There is a problem with the proxy server's security certificate. Outlook is unable to connect to the proxy server "server.domain.com" Error Code 80000000"
Any help with this would be great