Management services, namely, providing management analysis and advice in the development of mailing lists, namely, address inferencing and normalization, name parsing and genderization, contact name upper and lower case correction, national change of address (NCOS) management and support, coding accuracy support system (CASS) management and support, matching addresses with geographic location (GEOCODING) management and support, and managing and updating services related to mail delivery sequence files, all for use in developing and conducting marketing campaigns