For sometime I've had a perfectly working autodiscover service working both internally and externally. However, I've recently begun to have problems. I have reports that Out of Office messages are failing for some and when running the test for autodiscover at https://www.testexchangeconnectivity.com
I have found that it is trying to get to a non-existant URL.
The URL we've used since install is autodiscover.domain.org
The Outlook Anywhere server URL is mail.domain.org
The test cannot find the autodiscover URL because it is looking for autodiscover.mail
Any idea of where and how to change this so the correct URL is distributed again would be greatly appreciated.