how long will the post office hold a certified letter
This reminder informs the person a USPS Certified MailÂ® letter is being held at the local Post Office for pick-up. They must go to the Post Office to Sign for the letter and pick it up. If no one picks up the letter after 5 to 7 days, USPS will leave a second delivery notice. Again the delivery slip reminder is left by the letter carrier. Finally after 5 to 7 days the final delivery attempt is made to the delivery address.