It’s fascinating the amount of work that goes into processing your direct mail. This video shows you each stage of the process. Enjoy. Video source: INSIDER Tags data processing, Direct mail, first class mail, presort, presort standard, USPS About The Author Mike Gunderson Mike Gunderson is the founder of Gunderson Direct, Inc., a direct marketing agency that helps businesses drive new leads and close more sales through traditional offline channels, especially direct mail. .