Abstract: A computer-implemented method and system for prioritizing notifications deliverable to one or more end users include a notifications service identifier identifying one or more end user notification receiving devices. A notifications service server sends a first batch of one or more notifications to the one or more end user notification receiving devices. A notifications service monitor monitors delivery status information relative to each of the one or more notifications of the first batch. A notifications service collector collects the delivery status information. A notifications service calculator determines an end user notification preference score for each of the one or more end user notification receiving devices using the delivery status information.