Can we obtain the data from On Prem Office 365 using Microsoft Graph API.

Question

Can we configure app in azure for on prem office 365 to access the data using Microsoft graph api.
Is it possible.
Is there any product called onprem office 365?

Answer 1

No there used to be hybrid option but this was depreciated in March https://learn.microsoft.com/en-us/graph/hybrid-rest-support. If you have hybrid modern authentication configured https://learn.microsoft.com/en-us/microsoft-365/enterprise/configure-exchange-server-for-hybrid-modern-authentication?view=o365-worldwide then you can request a token from Azure that you can they use Exchange Web Services to access the on-prem email data https://learn.microsoft.com/en-us/exchange/client-developer/exchange-web-services/ews-applications-and-the-exchange-architecture