Exchange 2016 on-premise mailbox access using Graph API (Hybrid Setup)
问题 I have a mailbox in on prem exchange server (which is in hybrid mode) abc@onprem.com and i am trying to access this via graph api (/messages). This works perfectly if i do this in graph explorer, but fails when i do via implementation. Required application permission is given in Azure app registration portal. Implementation uses grant_type as client_credentials with certificate and this works perfectly for cloud users. Response of API { 'error': { 'innerError': { 'date': '2019-02-28T14:17:45'