Microsoft Remote Connectivity Analyzer a very good tool to test connectivity.
Outlook Connectivity Test
If Connectivity test failed, you need to Expand All and figure out the error and then fix it, for this case, it’s Testing HTTP Authentication Method test failed, Run follow cmdlet to verify and change settings.
Get-OutlookAnywhere | FT Identity,*auth* -AutoSize
Set-OutlookAnywhere -Identity "GDXEX02\rpc (Default Web Site)" -IISAuthenticationMethods Basic
You may need to reboot Exchange servers
Outlook Autodiscover Connectivity Test
Exchange ActiveSync Autodiscover Connectivity Test
3. Fill in all information and click Perform Test.
Make sure that Autodiscover was successfully tested for
Exchange Web Services Connectivity Test – Synchronization, Notification, Availability, and Automatic Replies
Testing Inbound Mail Flow
Testing Outbound Mail Flow
To be continue……
Hope you enjoy this post.