FrontendTransport health set unhealthy (OnPremisesSmtpClientSubmissionMonitor) - The client submission probe failed 3 times over 15 minutes. 

Seems like these alerts have started comming for some of the servers, where mailbox and CAS role is installed together. when i cehcked the queue, all seems to be fine. Performed the below mentioned steps, but the issue didn't fixed:

1. invoke-monitoringprobe" command doesn't work.

2. Have restarted "health manager service" didn't work.

Still the alert value is in uhealthy state, have anyone come across the same issue, if so, can you share what are the steps that we have take? 

Your answers are much appreciated!

Hi,

Please check the Monitor Result and Probe Result in the following path and see if there is any related message.

Event Viewer\Applications and Services Logs\Microsoft\Exchange\ActiveMonitoring\ProbeResult( or MonitorResult).

Based on your description, everthing works well except this alert. However, there is a way to hide the alert by overriding the monitor using the command below:

Add-GlobalMonitoringOverride -Identity "FrontendTransport\OnPremisesSmtpClientSubmissionMonitor" -PropertyName Enabled -PropertyValue 0 -ItemType Monitor -ApplyVersion "version"

Hope this is helpful to you.

Best regards,

Hello Belinda,

Thanks for your inputs.

The scom alert got closed after restarting the "Front end Transport service".

The last option that i may follow is to create an override.

thanks,

Vignesh