title: Microsoft 365 mailbox detail
agents: special_microsoft_365
license: GPL-2.0-only
distribution: checkmk-microsoft365
catalog: app/msoffice
description:

 Title: Microsoft 365 mailbox detail.

 Provides per-mailbox usage/capacity information from the Microsoft Graph report function {/reports/getMailboxUsageDetail(period=...)}. This is usage reporting, not Exchange Online configuration drift.

 Documentation: https://learn.microsoft.com/en-us/graph/api/resources/report?view=graph-rest-1.0

inventory:

 One service is created per matching mailbox when mailbox detail is enabled.

item:

 Mailbox user principal name.
