I have a Windows 7 Pro 64bit machine running Outlook 2010. We recently started getting a Windows Security box for Outlook that comes up that says, "Connecting to (email@example.com)" and asks for our username and password.
The interesting thing is that the email that is listed in the box is not part of our domain and it doesn't let us change it. If we cancel it, we are still connected to exchange. The box seems to be arbitrary to our actual connection.
My thought is that someone accepted a security certificate at one time without reading it and now it keeps coming back up. I would like to go into the certificate store and see if I can find something that matches so I can delete it. I just don't know where the certificate stores are. Can anyone help?