So when a customer signs the back of a 3849 for redelivery of a certified letter our clerk won't give it to me if it has a return receipt attached to it. Is this correct? I hunted in the po603 but saw no answer. The 3849 does not say that this type of certified is exempt from redelivery. I was thinking that their signature on the back also enabled me to act as their agent and initial the return receipt for them and check the agent box. Is that convoluted thinking? What is the correct proceedure? Anything in writing on this?