You did not understand me well 
Is there an option in CHECKMK to define SMTP details of the server that will be USED to send notification ?
I am not looking for an option to test if there is SMTP server active at defined host.
You did not understand me well
Is there an option in CHECKMK to define SMTP details of the server that will be USED to send notification ?
I am not looking for an option to test if there is SMTP server active at defined host.