Automation letter or flat-size mail is mail that is 100% barcoded using an Intelligent Mail barcode (IMb) encoded with the correct delivery point routing code and prepared for the Postal Service's high-speed mail processing equipment. The Postal Service saves the cost of more labor-intensive sortation and shares the savings with you in the form of lower postage prices.

Automation prices are available for letters, postcards, flats (large envelopes), and parcels. Your Business Mail Entry Unit can provide additional information and can help you decide if automation is right for you. A Mailpiece Design Analyst can help you design a mailpiece that will qualify for automation prices. A presort bureau or letter shop can help you prepare your mail to qualify for these special prices.

  • Automation mailings have separate minimum quantity requirements; you cannot combine Presorted pieces and automation pieces to reach the minimum volume requirement.