Administrators who want to limit the app access to a specific set of mailboxes can create an application access policy. Application access policy support for Microsoft Graph was released in 2019. Tod...
Updated Aug 26, 2026
Version 3.0
Blog Post
Greg Taylor - EXCHANGE
Microsoft
MicrosoftPostmaster - we'll have an update on Basic Auth very soon. And yes, 100 is currently the limit. We are investigating increasing it.