United States Postal Service (USPS). Track & trace the parcel from USA sent by USPS

What does the U.S. Postal Service do with lost mail?

As of January 2026, the United States Postal Service (USPS) has officially updated its postmark rules, potentially affecting the timeliness of sensitive mail. Effective December 24, 2025, a postmark now indicates the date a piece of mail is first processed at a regional facility by an automated sorting machine, rather than the date it was dropped off at a mailbox or local post office. Key Changes Regional Processing: Most mail dropped in blue collection boxes or neighborhood mailboxes is transpo

USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.

How to Prepare & Send a Package | USPS

USPS Issues Delivery Warnings in 15 States Over Winter Weather

How to Become a Contract Delivery Service for the United States Postal Service

'Bad planning, lack of management and understaffing' | USPS shipping delays traced to Indy distribution hub