Open and edit an alert rule, go to the  "Email" tab and click on the "Email-profiles" button.

On the pop-up panel, set up various tabs (including the outgoing mail server in the "SMTP" tab).  Finally, go to the "Summary" tab and click the "Test" button and see if any test  email can be sent out successfully.

Is your MobiControl server on-premises or cloud-based?   It can be more tricky if you use cloud-based MobiControl server and a google sender account and SMTP server such as smtp.gmail.com.

Is it possible that your outgoing e-mail server parameters has not been properly set up with MobiControl?   Have you ever received any e-mail from other alert rule(s)?

Thanks Raymond for your reply

This is the first time so I never receive an email from Mobicontrol

What are the settings I have to check please ?

Thank you Raymond

I checked with the IT team and we found that the server name was not correct.

All is OK now