Hi
I have exchange 2013 installed FRESH. I have configured all the URLs properly and autodiscover is published externally as an A record (autodiscover.domain.com)
There are no issues inside.
HOWEVER I can NOT access outlook anywhere from outside. I get a pop up that says "Outlook can not log on. Verify you are connected to the network and are using the proper server and
server mailbox name.....". exchange remote connectivity analyzer shows me this error "An HTTP 401 Unauthorized response was received from the remote Unknown server. This is usually the result of an incorrect username or password."
I can access our OWA and autodiscover properly from outside. I can also reach https://autodiscover.domain.com/autodiscover/autodiscover.xml. When I use "test autoconfiguration" from outlook the tests are all successful. IISauthentication is set to "basic,ntlm". I tried both NTLM & basic. I also tried multiple accounts. Nothing works
I appreciate your help.