On the other hand, retail email specialist Bluecore has crossed that boundary by tying its delivery engine directly to an internal CDP. Bluecore’s new product creates a unified view with customer, product, and behavioral data. This would probably meet the technical definition of a CDP if the data is shared with external systems. But even then, we’d call Bluecore a “delivery system with a CDP inside” rather than a CDP. This blog post tries to explain the distinction.