[event name] deliverysuccess [event type] DeliveryReportEvent [short description] handles successful delivery reports [event handler] 
ondeliverysuccess
o n r e c e i v e d
o n s e n t
o n d e l i v e r y s u c c e s s
o n d e l i v e r y e r r o r
o n s e r v i c e a d d e d
o n s e r v i c e r e m o v e d