What Are Intelligent Mail Barcodes?

Intelligent Mail barcodes, called IMbs, are advanced, USPS-developed barcodes that uniquely identify and track individual mailpieces throughout the postal system. Used on letters, flats, and postcards, IMbs combine routing and tracking data into a single barcode, enabling full visibility from print to delivery.

Each IMb encodes critical information, including:

• Mailer ID – Identifies the sender

• Service Type Identifier (STID) – Specifies the mail class and any optional services like tracking or address correction

• Sequence Number – A unique identifier for each piece of mail

• Routing Code – ZIP Code or delivery point information to guide USPS sorting and delivery

The IMb is formatted as a 65-bar, four-state barcode, meaning it uses four types of bars to encode multiple data points in a compact space.

How Intelligent Mail Barcodes Work In Practice

We apply IMbs to bring full visibility and precision to every mailpiece. Here’s how the process unfolds on our production floor:

1. Barcodes Are Generated: During the variable data printing process, each piece is assigned a unique barcode, containing mail class, routing info, and tracking IDs, built from your recipient data.

2. Printed On Demand: The IMb is printed directly onto each envelope during production, ensuring every mailpiece is completely individualized.

3. Mail Is Sorted & Entered: Mail is automatically sorted and introduced into the USPS network.

4. Tracking Begins Immediately: IMbs are scanned throughout the mailpiece’s journey wherever the right equipment is available. Scans occur when the mailpiece is en route, when it’s arrived at the local post office, and when it’s delivered.

5. Delivery Data Comes Back to You: Every time an IMb is scanned, the data is sent directly back to our real-time tracking and document storage platform and compiled into easy-to-use reports, dashboards, or API feeds, giving you full transparency at every stage.

Who Benefits from Intelligent Mail Barcodes?

Industries where IMbs can enhance your workflow include:

• Finance: IMbs allow finance print and mail solutions firms to track time-sensitive communications like statements and disclosures.

• Healthcare: Track sensitive patient mail and improve patient communications with real-time delivery visibility as part of a healthcare printing and mailing workflow.

• Government: Create audit trails for government printing solutions, including election ballots, tax notices, and official correspondence, while improving transparency and reducing returned mail costs.

• Marketing: Track delivery of direct mail in real time, sync physical mail with digital outreach, and use delivery predictions to optimize timing of marketing initiatives and boost engagement.

• Legal: Printing solutions for legal firms use IMbs to track notices, letters, and updates.

• And More: Any organization that depends on accurate, accountable, and timely mail delivery can rely on Intelligent Mail barcoding to help ensure that your mail arrives, and that you know when it does.

How Do Intelligent Mail Barcodes Lower Postage Costs?

IMbs allow USPS employees to reduce manual handling of mailpieces, saving time and money. The use of the IMb is required to obtain certain discounts that can translate to significant price savings, especially when sending high volumes of documents.

Automation pricing is available for organizations that prepare mailings in specific ways. Following these requirements makes it easier to process mailpieces using automated equipment. Attaching an IMb to each envelope is one of the steps necessary to make mailpieces automation-compatible. Additional steps include meeting mailpiece size and mailing volume guidelines, using a mailing list that has been checked by CASS-certified software, and adhering to other requirements.

Presorted mail is mail that has been organized by zip code before being handed over to the USPS for processing. There are many different tiers of postage savings for this kind of mail, but the deepest ones are automation presort discounts. This pricing is for organizations that prepare automation-compatible mail and then presort it. Thus, intelligent barcoding is required to obtain the highest levels of postage savings from presorting.

Why Intelligent Mail Barcodes Matter:

IMbs give mailing programs the data they need to effectively reach clients and optimize their workflows. Here’s a summary of how:

• While other mail offers less transparency once it leaves your hands, IMbs enable end-to-end tracking, giving you real-time updates, predictive delivery windows, and proof of mailing at the individual document level.

• Intelligent Mail barcodes are efficient on an operational level: since IMbs are embedded during the VDP process, no extra handling is required.

• IMbs speed up mail processing. By doing so, they allow organizations to take advantage of discounted pricing for high-volume mailings.

• Every IMb scan returns data that can be turned into actionable insights, allowing you to optimize delivery timing, respond to customer inquiries, or feed metrics into your CRM.