I have a strange question.
One of our clients has started having an issue where users are getting a certificate error when they open their Outlook. It says that the name of the certificate is invalid or does not match the name of the site.
The strange thing is that the address seems to have a .com appended to it which is causing this but the certificate is fine, DNS looks ok and the virtual directory URLs are ok too.
Any idea what might be appending .com to the autodiscover lookup?