Presorted First-Class Mail is a type of mail that is prioritized by the USPS for faster delivery and includes forwarding and return services, but the postage rate is higher than it is for Marketing Mail. Presorting puts all the letters in zip code order, and since it takes far less time for the US Post Office to process them, you get a discount on the per-piece postage for that batch of letters. To qualify for Presorted First-Class Mail, you need to ship at least 500 pieces. This type of mail is generally used to send bulk items that are to be delivered within a specific time frame, such as invoices, bank statements, confidential documents, and checks. Presorted First-Class Mail assures guaranteed tracking along with on-time delivery.

In summary, Presorted First-Class Mail is a type of mail that is prioritized by the USPS for faster delivery and includes forwarding and return services, but the postage rate is higher than it is for Marketing Mail. It is generally used to send bulk items that are to be delivered within a specific time frame, such as invoices, bank statements, confidential documents, and checks. To qualify for Presorted First-Class Mail, you need to ship at least 500 pieces.