Customer communication management is core to effective one-to-one marketing with mixed media that merges digital and physical channels. Direct mail today is comprised of data-rich systems and processes that provide mailers with options for making their customer, production and channel intelligence more comprehensive and precise. Data integration can make each communication more relevant to customer needs. Relevance and accuracy are the result of combining data integration with name and address cleansing and standardization. Automated inserting, mailing and tracking technologies enable accuracy and higher efficiencies. When mail operations leverage communication intelligence across production and delivery channels, they are practicing mailstream marketing.