Forum Discussion
Ammar Hasayen
Jul 16, 2017Iron Contributor
Microsoft Graph to query whether a user is office mailbox or not
Hi, we are developing an application on premises using .NET. We have mailboxes on premises and mailboxes on Office365, and Azure AD Sync is in place. From within the .net app, we want to query th...
Amo Zhang
Aug 25, 2017Copper Contributor
How about this? Check the assignedLicenses property of the user object. If an Exchange Onine license assigned, you can assume that there is a mailbox for the user.