Announcements
02/01/2021
Mailer Identifier (MID) Application Process

The Postal Service will issue a Mailer Identifier (MID) to mail owners and mailing agents for use in the Intelligent Mail® container barcode, Intelligent Mail® tray barcode, or Intelligent Mail® barcode.

Tech Guides
02/01/2021
eVS® File Format v2.0

Appendix C: Shipping Services File Version 2.0 (as of 12/31/2020).

Tech Guides
02/01/2021
eVS® File Format v1.7

Appendix B: Shipping Services File Version 1.7 (as of 12/31/2020).

Applications/ Forms
02/01/2021
Mailer Identifier (MID) Application

Complete the following application to request a Mailer Identifier (MID) for use in the Intelligent Mail® container barcode, Intelligent Mail® tray barcode, or Intelligent Mail® barcode. The information provided will not be disclosed outside the Postal Service.

Announcements
01/31/2021
COMPLETED -- EXPEDITED PostalOne! System Release 52.0.1.3 - Sunday, January 31, 2021 (01.31.2021)