The document discusses SNS Bank's implementation of an inbound marketing machine to improve customer engagement and sales. It describes the architecture as combining database marketing with behavioral targeting to analyze customer data and behavior and generate personalized, relevant marketing messages. The system tracks over 200 customer characteristics and uses over 200 rules to deliver over 50 different offers and messages through snsbank.nl based on customers' real-time online behaviors. Initial results show a significant increase in reach, relevant offers, sales conversions, and call reductions while achieving a return on investment within one year.