title: Exchange Online mailbox configuration drift
agents: special_microsoft_365_exchange_config
license: GPL-2.0-only
distribution: checkmk-microsoft365
catalog: app/msoffice
description:

 Title: Exchange Online mailbox configuration drift.

 Data source: {Get-Mailbox}.

 The check performs configuration-drift monitoring. Values are normalized and hashed before being sent to the check plugin. "23 monitored field(s)" means these 23 selected configuration properties are included in the baseline; it is not an error count. On drift, Checkmk reports the property names whose hashes changed.

 Monitored properties: RecipientTypeDetails, AccountDisabled, ArchiveStatus, AuditEnabled, DeliverToMailboxAndForward, ForwardingAddress, ForwardingSmtpAddress, HiddenFromAddressListsEnabled, IssueWarningQuota, LitigationHoldEnabled, MaxReceiveSize, MaxSendSize, ModerationEnabled, ProhibitSendQuota, ProhibitSendReceiveQuota, RecoverableItemsQuota, RequireSenderAuthenticationEnabled, RetentionHoldEnabled, RetentionPolicy, RoleAssignmentPolicy, SCLJunkEnabled, SCLJunkThreshold, SingleItemRecoveryEnabled.

 Documentation: https://learn.microsoft.com/en-us/powershell/module/exchangepowershell/get-mailbox?view=exchange-ps

 The drift state and hold duration are configurable with the Exchange configuration-drift rules.

inventory:

 One service is created per matching mailbox when detailed mailbox configuration is enabled.

item:

 Mailbox primary SMTP address / UPN.
