Mail Delivery Companies used by LetterStream

Getting Started

Most LetterStream services result in physical mail that is handed off to the USPS for delivery. However, we also offer FedEx delivery for qualified accounts, and certain digital-only services that do not involve physical mail at all.


In This Article


USPS Mail Delivery

  • Nearly all mail sent through LetterStream is handed off to the USPS for delivery
  • This includes products such as:
    • First-Class Mail
    • Certified Mail
    • Postcards
    • Marketing Mail
  • Once USPS receives the mail, they are solely responsible for final delivery

FedEx Delivery Option

  • FedEx is available for pre-approved accounts
  • Requires a brief qualification process
  • Once active, mailings under this option are delivered via FedEx instead of USPS

Digital Services Without Mail Delivery

Certain services are purely digital and do not result in physical mail:

  • Address Cleanup Services
  • CASS (Coding Accuracy Support System)
  • NCOA (National Change of Address)

These services are securely processed on LetterStream’s platform and are not transferred to any delivery providers.

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