A push notification delivery system includes a server system including a processor, a network interface, and memory storing program instructions having code segments for receiving a received push notification, code segments for determining at least one of a favorable push time and a favorable message format based upon a database of received push information developed from a plurality of prior sent push notifications, and code segments for pushing the message to the destination in accordance with the at least one of a favorable push time and a favorable message format. A method for delivering push notifications includes receiving a received push notification including a message and a destination, sending a sent push notification derived from the received push notification to the destination in accordance with at least one favorable condition, receiving received push information related to the sent push notification, and storing the received push information in a database.