I have about 15 servers with ISPConfig. A bunch of them have Traffic Exceedance Notification messages and all sites are set to "Notify" but I am not getting any emails when sites go over their bandwidth quota. Also, are these messages sent daily?
I just checked the scripts, traffic exceedence messages are sent to the mail address that is stored in the client details. There is no message sent to the admin at the moment.
It's working for me. Are you sure that you filled in the sender and BCC addresses for "Web Site Suspension Notification (Traffic Exceedance)", "Traffic Exceedance Notification", "Reseller Suspension Notification (Traffic Exceedance)", and "Reseller Traffic Exceedance Notification" under Management > Server > Settings > Options?