Mail Processing
Mail Class DefinitionsRead the definitions of mail classes here, as provided by the United States Postal Service. |
EnclosuresAre you sending a pen, pin or coin? Make sure it gets through the USPS machines without damage! Review the requirements here. |
Envelopes - For Machine Insertion
Letter-Sized Envelope Specifications • Envelopes must be at least 0.5 inch (13 mm) wider than the sum of
the maximum width of the insert pack plus the thickness of the pack. Review the latest standards here. |
Mail EndorsementsLearn more about the various mail endorsements. |
Standard Class MailBetter understand what standard class mail means, and how it can help you better prepare your mailings. |
Bulk MailLearn about the requirements and prerequisites for a bulk mailer before beginning. Be sure to contact Postal Services to learn about services available. |
