How does usps know to forward mail

The United States Postal Service (USPS) uses a complex system to forward mail to its intended destination. Here's a step-by-step explanation of how it works:

  1. Address Correction: When a piece of mail is sent to a new address, the sender typically updates the address on the envelope or package. If the sender doesn't update the address, the USPS may still be able to forward the mail using its address correction services.
  2. Address Matching: When mail is received at a USPS facility, it is scanned and entered into the USPS's database using a process called "address matching." This process compares the address on the mailpiece to the USPS's database of addresses to determine if the address is valid and if there is a forwarding address on file.
  3. Forwarding Address Database: The USPS maintains a database of forwarding addresses, which is updated daily. This database contains information on addresses that have been updated or changed, including new addresses, forwarding addresses, and addresses that have been discontinued.
  4. Automated Forwarding: If the USPS determines that the mailpiece is eligible for forwarding, it is automatically forwarded to the new address using a process called "automated forwarding." This process uses barcodes and optical character recognition (OCR) technology to read the address on the mailpiece and direct it to the correct destination.
  5. Manual Forwarding: If the mailpiece is not eligible for automated forwarding, it is sent to a USPS facility where it is manually sorted and forwarded to the new address. This process is typically used for mailpieces that do not have a barcode or are not easily readable by the automated system.
  6. Forwarding Centers: The USPS has a network of forwarding centers located throughout the country. These centers are responsible for processing and forwarding mail to its intended destination. Each center has a specific geographic area that it serves, and mail is routed to the center that is closest to the new address.
  7. Tracking and Confirmation: Once the mailpiece is forwarded, the USPS tracks its movement and provides confirmation to the sender and recipient. This includes sending a confirmation email or letter to the sender and providing tracking information to the recipient.

The USPS uses a combination of technology and human processing to ensure that mail is accurately forwarded to its intended destination. The process is designed to be efficient and reliable, with the goal of delivering mail quickly and accurately to the recipient.