KHI: The Microsoft Exchange Mailbox Assistants service (MSExchangeMailboxAssistants) is not running.

_d5515d9f_931d_44ab_bac9_7981c189eb2d_ (UnitMonitor)

Knowledge Base article:

External Knowledge Sources

For more information, see the respective topic at the Microsoft Exchange Server TechCenter

Element properties:

TargetMicrosoft.Exchange.2010.Mailbox.Assistants
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateFalse
Alert Auto ResolveTrue
Monitor TypeCorrelation.StatefulServiceEventMonitorType
RemotableTrue
AccessibilityPublic
RunAsDefault
CommentActionable='False';Urgent='False';EscalationTeam='Calendaring/Sharing'

Source Code:

<UnitMonitor ID="_d5515d9f_931d_44ab_bac9_7981c189eb2d_" Target="Microsoft.Exchange.2010.Mailbox.Assistants" Enabled="onEssentialMonitoring" Accessibility="Public" ParentMonitorID="SystemHealth!System.Health.AvailabilityState" TypeID="Correlation.StatefulServiceEventMonitorType" Comment="Actionable='False';Urgent='False';EscalationTeam='Calendaring/Sharing'">
<Category>AvailabilityHealth</Category>
<OperationalStates>
<OperationalState ID="HMServiceEventMonitorNotRunningOpState_DC569681_955C_44A0_9715_466E2F175F95" MonitorTypeStateID="NotRunning" HealthState="Error"/>
<OperationalState ID="HMServiceEventMonitorRunningOpState_6EB1E154_412C_4066_9638_C3C8DF9DE431" MonitorTypeStateID="Running" HealthState="Success"/>
</OperationalStates>
<Configuration>
<MonitorType>KHI</MonitorType>
<ComputerName>.</ComputerName>
<ServiceName>MSExchangeMailboxAssistants</ServiceName>
</Configuration>
</UnitMonitor>