Send USPS Certified Mail Online

Certified Mail is a USPS upgrade to First-Class Mail that provides proof of mailing, tracking, and optional Electronic Signature upon request. 

To add Certified Mail tracking to your letter, upload your document and check the box: Add Certified Mail service (Tracking).

Additional options:

1. Add Certified Electronic Return Receipt (Tracking and Electronic Signature — ERR) for an additional fee.
2. Add Registered Mail service (International Only, Tracking and Signature, expect 2+ weeks for delivery) for an additional fee.

It’s as simple as creating a free LetterStream account, clicking Send Letters, and selecting USPS Certified Mail service (with or without the Electronic Return Receipt). 

1. Select Send Letter(s)
2. Once your document is uploaded, select Add Certified Mail services (Tracking).
3. Additional options are adding Electronic Return Receipt (ERR), or Add Registered Mail service (International mail only) for an additional fee.

No. LetterStream handles printing, inserting, sealing, postage, and then provides your mailing to the USPS for delivery. You can complete everything from anywhere in the world (as long as you have internet access).

Your account includes mailing history and the USPS tracking updates. If you choose to include the Electronic Return Receipt, you’ll also receive proof of delivery upon successful delivery. 

1. All Certified Mail tracking can be viewed from within your LetterStream account.
2. No more tracking forms to file or potentially lose.
3. LetterStream keeps these documents longer than the USPS
4. Tracking within your account makes managing Certified Mail for individuals or teams easy and efficient.

You’ll receive a unique USPS tracking number for each Certified Mail piece. The tracking number and status updates will be visible inside your LetterStream account or can be tracked directly through the USPS website. 

Your LetterStream account stores your mailing history and tracking information longer than the United States Post Office.

LetterStream prepares and mails most jobs very quickly. In fact, 95% of all LetterStream mail is sent by the next business day, and 50% is mailed the same day.

Once your mail enters the USPS system, delivery times depend on the destination and current postal conditions. Certified Mail delivery typically averages 3–7 business days after mailing.

If you need faster sending:

• Expedited Processing ensures your mail is sent by the next business day (there is an additional fee of 10% of the total cost plus $1.99).

• Rush Processing sends your mail the same day when submitted by 3:00 PM Arizona time (there is an additional fee of 20% of the total cost plus $3.99).

To see the exact cost for your specific job:

1. Add your Certified Mail job to your shopping cart.
2. Select either Expedite Processing or Rush Processing to see how the total cost changes.

Yes. You can choose to add the Electronic Return Receipt option to any Certified mailing. Upon successful delivery, they will upload the signature file to their system, giving us access to it a few days after delivery. This is their official electronic signature, which we offer in place of the classic physical green card that is costlier and takes longer to receive back in the mail. 

1. Tracking records, including a signature file for your ERR, are kept within your LetterStream account.
2. No green forms to fill our or potentially lose.

Restricted Delivery ensures only the named recipient (or their authorized agent) can sign for the letter. It’s available for certain scenarios upon request as a custom add-on. LetterStream cannot guarantee USPS compliance or successful delivery, as the final handling is at the discretion of the postal clerk. 

Yes, you can share a proof of your Certified Mail with others without giving them access to all your mailings. Here’s how you can do it:

1. Log into your LetterStream account.
2. Locate the job you want to share from your job list.
3. Under the Options column, click EDIT next to the job name.
4. Select Notify Others from the pop-up menu.
5. In the Notify Others section, enter the email address(es) of the people you’d like to notify.
6. Click Save or follow the prompts to complete the process.

This will allow you to share specific job proofs with others for review or approval.

Yes. Certified Mail can be sent to PO Boxes, and USPS will handle delivery/notification per PO Box rules. Generally they will place a notice inside the box, telling the recipient that it needs to be picked up and signed for at the front desks. 

Certified Mail is ideal for important, time-sensitive, legal, compliance, or financial notices where you need tracking and proof the item was mailed and delivered. 

USPS tracking can pause during transit or processing. If it appears stalled beyond typical USPS timelines, follow the Help Center guidance for USPS delays and contact support if you need help investigating. Please note that delivery is not guaranteed, and we don’t provide refunds for lost or undelivered letters. 

Certain USPS address types aren’t eligible (such as international, military, APO/FPO/DPO), and Certified Mail must be addressed to a specific person or company rather than a generic recipient. 

USPS Certified Mail is domestic-only. For international mail that needs tracking or proof, you’d need to use USPS Registered mail, which we also provide.