The user type 'support' is intended to be used to indicate that the user is from a hardware maintenance support service external to your organization. Therefore, only events with the more serious notification type of 'error' can be sent to a 'support' user type.
Ensure that you have specified the correct user type. If you want this user to receive warning or information notifications, do not specify the '-usertype support' parameter and value. If you specify the user type as 'support', you must specify the -warning and -info parameters as 'off'.