Receiving the following error when attempting to validate the ndMail configuration in the NetDocuments repository settings.
Unable to validate exchange configuration:
The request failed. The request failed. "Insert Exchange Host here"
Solution: Verify that the Exchange Host is correct and retry.
Example: "mail.netdocuments.com or outlook.office365.com"
Also, verify that OWA is reachable by NetDocuments. You may need to add the relevant datacenter to inclusion list. See Adding NetDocuments to Inclusion List.