What’s the difference between First Class Mail, Marketing Mail, and Marketing Non-Profit Mail?

First Class Mail can be anything mailable that is 13 ounces or less, including bills, invoices, personal correspondence, or merchandise. (Pieces over 13 ounces can be sent as priority mail.) It is faster, but more expensive than Marketing Mail, and includes forwarding and return services. If your First Class mailing has over 500 ZIP+4 encoded pieces, it can be presorted, giving you a lower postage rate.

Marketing Mail (formerly Standard Mail) includes advertisements, circulars, newsletters, small parcels, and merchandise. It is slower, but less expensive than First Class Mail, and does not include forwarding and return services unless requested. You must have at least 200 ZIP+4 encoded pieces or 50 pounds of mail, with each piece weighing under 16 ounces.

Marketing Non-Profit Mail offers the lowest prices, but only organizations authorized by the USPS qualify for these discounts. It is processed as regular Marketing Mail.