how long does the us post office forward mail
, Letter Carrier (mailman)-3 years. When you submit a change of address to the USPS they forward your mail to your new address for 12 months, but do not notify any senders of the change. From 12 months to 18 months they will not forward your mail, but will return the mail to the sender with your new address on it. Persons who have received protection from stalkers and abusive perpetrators through a court order will not have forwarding information provided to businesses or individuals.