Intelligent Mail

USPS® Intelligent Mail barcode (IMb™) management

The Intelligent Mail barcode (formerly known as the 4-State Customer Barcode) is the next generation of USPS barcode technology used to sort and track letters and flats. Intelligent Mail barcode software, among other things, combines the capabilities of the POSTNET™ barcode and the PLANET Code® barcode into one unique barcode.

Beginning January 2014, mailers will be required to use Full-Service Intelligent Mail software for automation discounts, and will be required to use eDoc to upload all paperwork to PostalOne!®

Despite previous plans to require certification of all mailers, TEM testing and approval of mailers is not currently required for Full-Service mailers using eDoc certified vendor software. However, mailers may still want to go through the TEM process to mitigate any potential issues and ensure a smooth transition to the new process.

You can view the latest version of the IMb FAQ here.


SmartBarcode Manager uses Anchor's proprietary technology to allow users to create Intelligent Mail barcodes for files generated by any presort, permitting users to manage their unique Intelligent Mail serial numbers within a single Mailer ID or across multiple mailings for the same Mailer ID. SmartBarcode Manager helps companies manage the entire Intelligent Mail barcode process. As an Intelligent Mail barcode generator, it works with presorted files generated by Anchor Software’s MaxPresort OS or any software vendor’s presort system.


SnailWorks Mail Tracking manages lets you know exactly where your mail is and when it's being delivered. Make your multi-channel marketing easy, effective, and profitable!


MailAssurety is a full-featured Mail.dat® editor for Full-Service intelligent mail that allows post-presort editing of Mail.dat files.



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 Snailworks Mail Tracking for Full Service Intelligent Mail Barcode