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 Released January 9, 2023 Database Date: December 1, 2022 Build 4213 Build History Notices Presort PS 3602-R Line B30 Issue Canadian Addresser Inclusion Known Issues New Rates Notice The July 2022 Rates go into effect July 10, 2022. 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 Uploading Mail.dat FAQ MAILERS+4 MAILERS+4 SmartMover FAQ Tutorials Web Tutorials SmartMover Tutorial 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