The Royal Mail guide Know How provides valuable information on how you can use a variety of services, including, Mailsort to reduce the costs of sending bulk postal mail. There are checklist criteria available to allow you to identify which service is most suitable for you.
Cost-Saving Mechanisms when Sending Large Quantities of Questionnaires via Postal Services by Margaret MacDougall is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.