You can enhance the service, security, and convenience of Priority Mail by addingĮxtra services such as USPS Tracking and Registered Mail. Priority Mail postage includesįorwarding and return service. If getting your mail there fast is your top priority, Priority Mail offers the best value. All matter sealed or otherwise closed against inspection.Personal correspondence (a letter to Grandma), personalized business correspondence (a handwritten letter to your customer).Bills, statements of account or invoices, credit cards.Some things MUST be mailed as Priority Mail (or First-Class Mail), including: USPS Marketing Mail Eligibility Decision TreeĪll matter that is mailable by air transportation can be mailed as Priority Mail.
Designing Letter and Reply Mail (PUB 25).
