

What makes First-Class Mail a first-class service? Any mailable item that is sealed or closed against inspection.In fact, some types of mail must be sent through either First-Class Mail or Priority Mail, including: Unlike less expensive bulk-mailing services like USPS Marketing Mail, there are no minimum number of pieces, mailing permits or presorting requirements to worry about. Many start-ups and home business use First-Class Mail to send postcards and letters. and your parcels weigh less than 13 ounces. Anything you send to customers, including bills, invoices, correspondences and merchandise can be sent via First-Class, as long as your letters weigh less than 3.5 ounces. What is First-Class Mail?įirst Class Mail is the most common and affordable way to send envelopes and lightweight packages. Businesses of all sizes count on First-Class Mail as an economical way to send postcards, letters, flats and light packages to customers both domestically and globally. Although First-Class Mail is often associated with simply mailing letters, its services go well beyond that. USPS offers a wide range of services or “classes” businesses use to mail or ship to customers, including the ever-popular First-Class Mail ®.

In other words, First-Class Mail is “regular” mail. When you stick a stamp on an envelope and place it in a mailbox, you are sending something First-Class.
