Usa mails

You're referring to the United States Postal Service (USPS)!

Here are some common types of mail services offered by the USPS:

1. First-Class Mail: For personal and business correspondence, including letters, postcards, and lightweight packages.
2. Priority Mail: For faster delivery of packages, with estimated delivery times of 1-3 business days.
3. Priority Mail Express: For overnight delivery of packages, with a money-back guarantee if not delivered by 10:30 am the next business day.
4. Parcel Post: For larger and heavier packages, with estimated delivery times of 2-9 business days.
5. Media Mail: For sending books, CDs, DVDs, and other media items, with a lower cost than regular First-Class Mail.
6. International Mail: For sending mail and packages to countries outside the United States, with various services and rates depending on the destination.
7. Certified Mail: For tracking and proof of delivery, with a signature required upon receipt.
8. Return Receipt: For tracking and proof of delivery, with a signature required upon receipt and a return receipt sent to the sender.
9. Registered Mail: For tracking and proof of delivery, with a signature required upon receipt and a receipt sent to the sender.
10. Special Services: For additional services such as insurance, signature confirmation, and delivery confirmation.

Some common mail formats and sizes include:

1. Letter: A standard envelope with a maximum size of 11.5 inches long, 6.125 inches high, and 0.25 inches thick.
2. Large Envelope: A larger envelope with a maximum size of 12 inches long, 15 inches high, and 0.75 inches thick.
3. Flat: A flat, unfolded item such as a poster or map, with a maximum size of 15 inches long, 23 inches high, and 0.25 inches thick.
4. Package: A box or container with a maximum weight of 70 pounds and a maximum size of 108 inches long, 165 inches high, and 108 inches wide.

Remember to check the USPS website or consult with a postal worker for specific rates, services, and regulations for your mail needs.