Itella is a service business whose core competency lies in information and product flow management. One of the key issues on Itella´s responsibility agenda is the carbon footprint of its service products, e.g. letters, parcels, unaddressed mail, magazine delivery and hybrid mail services. Tofuture helped Itella to introduce systematic carbon footprint calculation by developing a system that makes it possible to model the mail delivery process, that is calculate significant environmental effects for different process phases. Thereby, Itella is able to calculate its carbon footprint per product category, per product type and per single product delivered. All this information is used for customer reporting, product development and directing customers to more efficient and responsible solutions of mail delivery.