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First-Class Mail For Your Business

First-Class Mail® is a fast and affordable service for envelopes and packages weighing up to 13 oz with delivery in 3 days or less. It’s perfect for sending marketing materials, bills, and light merchandise to your customers.


First-Class Mail offers a wide range of options for all businesses. When sent locally, 96 percent of First-Class Mail arrives within 1 day. When sent nationwide, 94 percent arrives within 3 days. And with address correction and forwarding services, your message reaches an even greater percentage of your audience. First-Class Mail is targetable, trackable, and measurable — helping to increase the overall effectiveness of your integrated marketing campaigns.

First-Class Mail is secure. It’s supported and protected by the U.S. Postal Inspection Service and can be combined with extra services, such as Signature Confirmation™.



  • Secure delivery within 3 days in most cases
  • Our best priced service for mail up to 13 oz
  • Can be combined with extra services to confirm delivery
  • 2nd Ounce Free
  • Cost effective way to reach larger percentage of your audience

2nd Ounce Free

The Postal Service™ offers 2nd Ounce Free for First-Class Mail Presort and Automation letters. This allows you to make use of a free second ounce for your operational or marketing purposes and realize more value from your mailings. The one price for up to 2 oz is not a blended price and does not apply to First-Class Mail single piece letters or residual single piece letters.

Second Ounce Free allows you to combine more promotional messages with bills, invoices, and statements without having to worry about additional postage costs. As a cost-effective way to enhance your mailings, 2nd Ounce Free is also great for…

  • Cross-selling and up-selling products and services
  • Informing, educating, and instilling loyalty
  • Communicating features, benefits, and advantages of reward programs
  • Promoting new products, discussing time sensitive information, or sharing company news
  • Providing special offers or upgrades to your customers
  • Partnering with companies looking to market a complementary product