OnPremisesSmtpClientSubmissionMoni tor Reporting as Unhealthy on CAS servers

We recently patched our servers to CU9. The FrontendTransport\OnPremisesSmtpClientSubmissionMonitor now reports it is Unhealthy. In the monitoring logs the following is found:

The client submission probe failed 3 times over 15 minutes.
Server 127.0.0.1 on port 587 did not respond with expected response (OK). The actual response was: 550 5.7.1 Client does not have permissions to send as this sender
.
Probe Exception: 'System.Exception: Server 127.0.0.1 on port 587 did not respond with expected response (OK). The actual response was: 550 5.7.1 Client does not have permissions to send as this sender
.
   at Microsoft.Forefront.Monitoring.ActiveMonitoring.Smtp.Probes.SmtpConnectionProbe.AssertExpectedResponse(SmtpExpectedResponse expectedResponse)
   at Microsoft.Forefront.Monitoring.ActiveMonitoring.Smtp.Probes.SmtpConnectionProbe.TestConnection()
   at Microsoft.Forefront.Monitoring.ActiveMonitoring.Smtp.Probes.SmtpConnectionProbe.DoWork(CancellationToken cancellationToken)
   at Microsoft.Office.Datacenter.WorkerTaskFramework.WorkItem.Execute(CancellationToken joinedToken)
   at Microsoft.Office.Datacenter.WorkerTaskFramework.WorkItem.<>c__DisplayClass2.<StartExecuting>b__0()
   at System.Threading.Tasks.Task.Execute()'
Failure Context: 'Server 127.0.0.1 on port 587 did not respond with expected response (OK). The actual response was: 550 5.7.1 Client does not have permissions to send as this sender
.'
Execution Context: ''
Probe Result Name: 'OnPremisesSmtpClientSubmission'
Probe Result Type: 'Failed'
Monitor Total Value: '3'
Monitor Total Sample Count: '3'
Monitor Total Failed Count: '0'
Monitor Poisoned Count: '0'
Monitor First Alert Observed Time: 

How do we resolve this issue?

August 17th, 2015 7:28am

Hi,

Please restart the "MExchange Frontend Transport Service" on the affected server and check again.

If it doesn't work, please run the following command to have a try:
Add-GlobalMonitoringOverride -Identity "FrontendTransport\OnPremisesInboundProxy" -PropertyName Enabled -PropertyValue 0 -ApplyVersion "15.0.xxx.xx" -ItemType Monitor

The ApplyVersion here is your current Exchange version.

If the issue persists, please provide more error or warning logs for further analysis.

Regards,

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August 18th, 2015 2:43am

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