Guide to the Manifest Mailing System (Updated Publication 401)

This publication provides information on the Manifest Mailing System, which automates the documentation of postage and fees for all pieces in a mailing paid via permit imprint indicia.

What is manifest mailing?

Manifest mailing is an automated system that allows a mailer to document postage and fees for all pieces in a mailing paid via permit imprint indicia.

Each piece in the mailing is assigned a unique identification number that may be compared with the manifest. Usinga permit imprint indiciaeliminates the need to affix postage (metered or stamped).

The Manifest Mailing System (MMS) may be used to pay domestic or international postage, as well as fees forextra services.

To participate in the MMS program, the mailermust develop or use a computerized system that generates documentation to support mailings. This documentation must meet postal standards for format, completeness, accuracy, timeliness, and proper payment of postage. The mailer may present manifest documentation in hardcopy or in an electronic format.

Click to read Publication 401: Guide to the Manifest Mailing System