Email flow is perfect and all working. I upgraded my spam filter with a 3rd party and now the anti-spam is not working. They said it is because autodiscover is not working.
I have been to www.testexchangeconnectivity.com
and it did come back with some errors.
When I run
test-outlookwebservices firstname.lastname@example.org | FL
The first failure is the second line id 1013 and it reports that "the remote server returned an error: (500) Internal server error.
I tried going to https://domainname/AutoDiscover/AutoDiscover.xml
and it does not work.
I can ping autodiscover.domainmae.com
from both internal and external to the correct IP.
Need some quick help. Thanks,