Return address

It provides the recipient (and sometimes authorized intermediaries) with a means to determine how to respond to the sender of the message if needed.

In most countries such as the United States, Canada, Australia, France, the return address is located in the upper left-hand corner of the envelope, card, or label,[1][2][3][4] which is also recommended by the Universal Postal Union.

Many individuals have sheets of adhesive labels preprinted with their home address to affix to their correspondence.

With this rise in dead mail, the post office pleaded for people to use a return address.

As email began to overtake written mail, the return address became automatic in an e-mail.