MAILERS+4

This wiki page is no longer being updated as of September 08, 2025. In an effort to make our documentation better for our users, we are consolidating and streamlining the documents. Please see our new, updated product page at: Melissa Docs: Mailers+4

MAILERS+4 is an easy-to-use desktop program designed to help prepare a mailing for maximum postal discounts and efficient postal processing and delivery.	Current Build Build History Notices Presort PS 3602-R Line B30 Issue Canadian Addresser Inclusion Known Issues New Rates Notice The July 2023 Rates go into effect July 09, 2023. To learn more about the upcoming changes, please visit: USPS.com FAQs.
Basics MAILERS+4 Homepage Benefits & Features MAILERS+4 Installation MAILERS+4 Best Practices FAQ MAILERS+4 MAILERS+4 SmartMover FAQ Tutorials Web Tutorials SmartMover Tutorial Uploading Mail.dat TEM Testing Test Process for Mail.dat TEM Submission for Mail.dat	Documentation MAILERS+4 Reference Guide MAILERS+4 Quick Start Guide PAVE Certification CASS Certification Mailing Resources Standard Mail Guide Periodicals Guide Saturation Guide First Class Guide USPS Guides Quick Service Guide Business Mail 101 Domestic Mailing Manual USPS Price List CanadaPost Guides Commercial Mail Addressing Guidelines Result Codes Mailers+4 Result Codes