If you sent a Certified Mail letter and need to see who accepted the letter at the time of delivery you can can order the Signature after Mailing from USPS. The cost is $3.45 and can be purchased by completing Form 3811A at your local Post Office.
Signature After Mailing
USPS collects the signature of a person who accepts a USPS Certified Mail letter at the delivery address. The letter carrier cannot leave a Certified Mail letter without someone signing for the letter. If no one is available, a Delivery Notification is left in the mail box informing them to pick up the letter at the local Post Office. USPS will attempt to deliver the letter two more times normally 5 to 7 days after each attempt.
The signature of who accepted the letter is collected on a tan Delivery Notification card then taken back to the local Post Office. This is where each signature is electronically scanned and made into digital file images and safely stored in the USPS data storage vault in San Mateo California. Each signature or picture is stored with the corresponding USPS Certified Mail article number and is kept with the article delivery information for two years after the date of mailing.
The sender can request a copy of the Signature after Mailing by completing USPS Form 3811-A, (see the PDF Form Attached) then paying the appropriate USPS service fee of $3.45 when you make your request.
You can request the Signature after Mailing from any USPS Post Office unless the article was mailed to someone in the military and sent to an APO/FPO or the letter was mailed to Puerto Rico or the U.S. Virgin Islands. Then the request must be made to the local Post Office that completed the delivery.
In summary, the price for Signature after Mailing is $3.45 and can be purchased by completing Form 3811A at your local Post Office. USPS will send you the Signature after Mailing by fax, traditional First Class mail, or to your e-mail address.