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Critical Mail

 

For your business.

Critical Mail™ is a convenient shipping option for Commercial Plus™ mailers. It’s a great way to send important documents, tickets, or high-impact direct mail at a competitive price with the reliability and security you expect from USPS®.  It includes Delivery Confirmation™ service at no additional cost, so mailers can track their mailpieces and confirm delivery.

This product is a sub class of Priority Mail®, and is available for automation-compatible letters and flats.

Still Have Questions?

Browse our FAQs ›

Features

  • Free USPS custom envelopes fit in most mailboxes
  • Multiple pickup options available
  • Offers secure mailbox delivery on first attempt
  • No surcharges for fuel or residential and rural delivery
  • Reaches every U.S. address, plus PO Box™ addresses, and most APO/FPO/DPO destinations
  • Includes Delivery Confirmation

Compare other USPS® mailing and shipping services ›

With Critical Mail™, you already get …

Delivery Confirmation™ to see when it was delivered or delivery was attempted.

You can add the following options online…

Insurance coverage up to $5,000.

Signature Confirmation™ to see when it was delivered or delivery was attempted, and add security by requiring a signature.

You can add the following options at a Post Office™ to…

Insure the contents.

Insurance coverage up to $5,000.

Get delivery information.

Delivery Confirmation to see when it was delivered or delivery was attempted.

Signature Confirmation  to see when it was delivered or delivery was attempted, and add security by requiring a signature.

Learn more about extra services ›

Priority Mail Flat Rate® Shipping. Get free Priority Mail® supplies. Image of Priority Mail boxes and envelopes.Priority Mail Stamps. Buy now photo of stamps showing the Mackinac Bridge and the Redwood ForestShip Online. Print a label with postage. Image of a printer with shipping label and box.