
Dead letter mail or undeliverable mail is
mail
The mail or post is a system for physically transporting postcards, letter (message), letters, and parcel (package), parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid ...
that cannot be delivered to the addressee or returned to the sender. This is usually due to lack of compliance with postal regulations, an incomplete address and
return address, or the inability to
forward the mail when both correspondents move before the letter can be delivered. Largely based on the British model that emerged in the late eighteenth century, many countries developed similar systems for processing undeliverable mail.
The term 'dead mail' is perhaps a misnomer, and several jurisdictions have opted for the use of the term 'undeliverable mail' as more clearly representing the status of the item whose transmission has been impeded. As it is performed by internal departments within postal administrations, little information about the dead letter office function has ever been made public. A few journal articles and at least one recently published book (Canadian) dealing with this topic have appeared.
Classification as a dead letter is one of the few instances where postal personnel are allowed to violate
secrecy of correspondence
__NOTOC__
The secrecy of correspondence (german: Briefgeheimnis, french: secret de la correspondance) or literally translated as secrecy of letters, is a fundamental legal principle enshrined in the constitutions of several European countries. It ...
, ostensibly to search for clues as to the letter's origin or destination. Countries must also set up regulations for the disposal of dead letters, particularly when they contain items of value. Some very valuable items have turned up in undeliverable mail, including a stolen painting by
Marc Chagall
Marc Chagall; russian: link=no, Марк Заха́рович Шага́л ; be, Марк Захаравіч Шагал . (born Moishe Shagal; 28 March 1985) was a Russian-French artist. An early modernist, he was associated with several major ...
which turned up in a
United States Postal Service
The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or Postal Service, is an Independent agencies of the United States government, independent agency of the executive branch of the Federal government of the Uni ...
sorting center in
Topeka, Kansas
Topeka ( ; Kansa: ; iow, Dópikˀe, script=Latn or ) is the capital city
A capital city or capital is the municipality holding primary status in a country, state, province, department, or other subnational entity, usually as its seat ...
in January 2002.
Many countries, including
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tota ...
and the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
, have issued special labels for envelopes that have travelled through the dead letter office. Genuinely used examples are highly prized by collectors, although mint labels, because they have no postage value, are often fairly common.
People interested in
postal services throughout the world sometimes deliberately send mail to fictional addresses throughout the world to see if a particular nation's postal authority would return the mail to the sender. Collectors of postal markings also use this method in order to receive uncommon postal markings seldom seen in everyday mail.
Dead letter office

A dead letter office (DLO) is a facility within a
postal system
The mail or post is a system for physically transporting postcards, letters, and parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid-19th century, national postal sys ...
where undeliverable mail is processed. Mail is considered to be undeliverable when the address is invalid so it cannot be delivered to the addressee, and there is no
return address so it cannot be returned to the sender.
At a DLO, mail is usually opened to try to find an address to forward to. If an address is found, the envelope is usually sealed using tape or postal seals, or enclosed in plastic bags and delivered. If the letter or parcel is still undeliverable, valuable items are then auctioned off while the correspondence is usually destroyed. Despite this practice, in the past some undeliverable envelopes were acquired by
philatelists
Philately (; ) is the study of postage stamps and postal history. It also refers to the collection and appreciation of stamps and other philatelic products. Philately involves more than just stamp collecting or the study of postage; it is possi ...
.
Dead letter offices go by different names in different countries. Other names include returned letter office or undeliverable mail office.
Canada
Canada Post
Canada Post Corporation (french: Société canadienne des postes), trading as Canada Post (french: Postes Canada), is a Crown corporations of Canada, Crown corporation that functions as the primary Postal administration, postal operator in Canada ...
sends mail which is not deliverable to the Undeliverable Mail Office (NUMO) at
Mississauga,
Ontario
Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...
, or
North Sydney, Nova Scotia
North Sydney (Scottish Gaelic: ''Suidni A Tuath'' or ''Am Bàr'') is a former town and current community in Nova Scotia's Cape Breton Regional Municipality.
Located on the north side of Sydney Harbour, along the eastern coast of Cape Breto ...
. Domestic mail which is still undeliverable after passing through NUMO is then destroyed, while incoming international undeliverable mail is returned to the country of origin.
[
]
Malta
In Malta, undeliverable mail was sorted in the General Post Office in Valletta
Valletta (, mt, il-Belt Valletta, ) is an administrative unit and capital of Malta. Located on the main island, between Marsamxett Harbour to the west and the Grand Harbour to the east, its population within administrative limits in 2014 was ...
. The facility was initially known as the Returned Letter Branch, but later on it was also referred to as the Returned Letter Office or Dead Letter Office. Various postal markings were used at the facility from 1889 onward.
United Kingdom
A Dead Letter Office was first established in 1784 for dead and missent letters that had reached London. The bye-letter offices dealt with bye-letters and those that did not go to London. No postage was charged for returns, which were made after six months, where an addressee was found. From 1790, a charge was made for returned letters but the time was reduced to two months by John Palmer. Upon hearing of the return charge William Pitt rescinded the charge.
In the UK, undeliverable mail is processed in the National Returns Centre in Belfast
Belfast ( , ; from ga, Béal Feirste , meaning 'mouth of the sand-bank ford') is the capital and largest city of Northern Ireland, standing on the banks of the River Lagan on the east coast. It is the 12th-largest city in the United Kingd ...
which holds 20 million undeliverable items, or in a smaller office in Portsmouth
Portsmouth ( ) is a port and city status in the United Kingdom, city in the ceremonial county of Hampshire in southern England. The city of Portsmouth has been a Unitary authorities of England, unitary authority since 1 April 1997 and is admi ...
.
United States
The U.S. Post Office, as it was known then, started a dead letter office in 1825 to deal with undeliverable mail. By 1893, it handled about 20,000 items every day.[ Patti Lyle Collins was a long-time employee of the office, responsible for the redirection of an estimated 1,000 letters a day.] In 2006, approximately 90 million undeliverable-as-addressed (UAA) items ended up in the dead-letter office of the U.S. Postal Service; when the rightful owners cannot be identified, the correspondence is destroyed to protect customer privacy, and enclosed items of value are removed. Items of value that cannot be returned are sold at auction, except for pornography and firearms. The auctions also occasionally include items seized by postal inspectors and property being retired from postal service.
These facilities are now known as mail recovery centers (MRC). Other former names include the dead letter branch and the dead parcel branch. The USPS mail recovery center is located in Atlanta, Georgia
Atlanta ( ) is the capital and most populous city of the U.S. state of Georgia. It is the seat of Fulton County, the most populous county in Georgia, but its territory falls in both Fulton and DeKalb counties. With a population of 498,71 ...
. Since April 2013, the postal auctions have been held online and include not only material lost in the U.S. but also material from other national postal authorities who consign them to the USPS for auction.
In popular culture
*The first full-length American detective novel, ''The Dead Letter'', is partially set in the Dead Letter Office in Washington, DC. The book was written by Metta Victoria Fuller Victor under the pseudonym Seeley Regester in 1866.
*The rock band R.E.M. released a compilation of B-sides and rarities in 1987 entitled '' Dead Letter Office''.
*In the 1947 film ''Miracle on 34th Street
''Miracle on 34th Street'' (initially released as ''The Big Heart'' in the United Kingdom) is a 1947 American List of Christmas films, Christmas comedy-drama film released by 20th Century Fox, written and directed by George Seaton and based on ...
'', two mail sorters handle a letter addressed to " Kris Kringle" at the New York City
New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the U ...
courthouse, and decide to deliver all the Santa Claus
Santa Claus, also known as Father Christmas, Saint Nicholas, Saint Nick, Kris Kringle, or simply Santa, is a legendary figure originating in Western Christian culture who is said to bring children gifts during the late evening and overnigh ...
mail now in the dead letter office to the courthouse, where a man calling himself Kris Kringle is facing a mental competency hearing. The man's attorney
Attorney may refer to:
* Lawyer
** Attorney at law, in some jurisdictions
* Attorney, one who has power of attorney
* ''The Attorney'', a 2013 South Korean film
See also
* Attorney general, the principal legal officer of (or advisor to) a gove ...
uses the huge volume of mail as evidence that the federal government recognizes his client as "the one-and-only Santa Claus".
*Horror writer Clive Barker's book ''The Great and Secret Show
''The Great and Secret Show'' is a fantasy novel by British author Clive Barker. It was released in 1989 and it is the first "Book of the Art" in a trilogy, known as The Art Trilogy by fans.
The novel is about the conflict between two highly ...
'' features segments centered on the dead letter office in Omaha, Nebraska
Omaha ( ) is the largest city in the U.S. state of Nebraska and the county seat of Douglas County, Nebraska, Douglas County. Omaha is in the Midwestern United States on the Missouri River, about north of the mouth of the Platte River. List of ...
.
*In 1993, the USPS
The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or Postal Service, is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the ...
issued a 29c Elvis Presley stamp. Many fans of Elvis sent letters to fictitious addresses so that they would receive their letters back, marked with the words "return to sender", a homage to the song " Return to Sender".
*In ''The Simpsons
''The Simpsons'' is an American animated sitcom created by Matt Groening for the Fox Broadcasting Company. The series is a satirical depiction of American life, epitomized by the Simpson family, which consists of Homer Simpson, Homer, Marge ...
'' episode "Sunday, Cruddy Sunday
"Sunday, Cruddy Sunday" is the twelfth episode of the tenth season of the American animated television series ''The Simpsons''. It first aired on the Fox network in the United States on January 31, 1999, just after Super Bowl XXXIII and the pr ...
", Springfield Elementary School
Springfield is the primary fictional setting of the American animated sitcom ''The Simpsons'' and related media. It is an average-sized, fictional city within an indeterminate state in the United States. The fictional city's geography, surroundi ...
visits their local Post Office and are treated to a piece of undeliverable mail from the dead letter office as a souvenir
A souvenir (), memento, keepsake, or token of remembrance is an object a person acquires for the memories the owner associates with it. A souvenir can be any object that can be collected or purchased and transported home by the traveler as a ...
.
*In the 1996 comedy film '' Dear God'', a character played by Greg Kinnear
Gregory Buck Kinnear (born June 17, 1963) is an American actor. He was nominated for an Academy Award for Best Supporting Actor for his role in '' As Good as It Gets'' (1997).
Kinnear has appeared in many popular films, including '' Sabrina'' (1 ...
, who works in the dead letter office in Los Angeles, California, responds to letters written to God
In monotheistic thought, God is usually viewed as the supreme being, creator, and principal object of faith. Swinburne, R.G. "God" in Honderich, Ted. (ed)''The Oxford Companion to Philosophy'', Oxford University Press, 1995. God is typically ...
.
*The 2014 television series '' Signed, Sealed, Delivered'' takes place in a fictional dead letter office in Denver, Colorado.
*Terry Pratchett
Sir Terence David John Pratchett (28 April 1948 – 12 March 2015) was an English humourist, satirist, and author of fantasy novels, especially comic fantasy, comical works. He is best known for his ''Discworld'' series of 41 novels.
Pratchet ...
's Discworld
''Discworld'' is a comic fantasy"Humorous Fantasy" in David Pringle, ed., ''The Ultimate Encyclopedia of Fantasy'' (pp.31-33). London, Carlton,2006. book series written by the English author Terry Pratchett, set on the Discworld, a flat ...
novel ''Going Postal
''Going Postal'' is a fantasy novel by British writer Terry Pratchett, the 33rd book in his ''Discworld'' series, released in the United Kingdom on 25 September 2004. Unlike most of Pratchett's Discworld novels, ''Going Postal'' is divided into ...
'' takes place in a post office. At one point, Moist von Lipwig, the novel's protagonist, takes it upon himself to track down the intended recipients of as many dead letters as possible.
*The '' Bones'' episode "The Male in the Mail" (season 7, episode 4) featured a decomposed body turning up at the dead letter office in Washington D.C.
*In Herman Melville's short story "Bartleby, the Scrivener
"Bartleby, the Scrivener: A Story of Wall Street" is a short story by the American writer Herman Melville, first serialized anonymously in two parts in the November and December 1853 issues of '' Putnam's Magazine'' and reprinted with minor tex ...
", it is suggested that Bartleby had been employed as a clerk in the "Dead Letter Office at Washington".
*In late 2019, the rock band Soul Asylum
Soul Asylum is an American alternative rock band formed in 1981 in Minneapolis, Minnesota. Their 1993 hit "Runaway Train" won the Grammy Award for Best Rock Song.
The band was originally called Loud Fast Rules, with a lineup consisting of Dav ...
released a song titled "Dead Letter".
*The level in the 2021 videogame ''Psychonauts 2
''Psychonauts 2'' is a platform game developed by Double Fine and published by Xbox Game Studios. The game was announced at The Game Awards 2015 ceremony, and released on August 25, 2021 for PlayStation 4, Windows, Xbox One and Xbox Series X/ ...
'' titled "Cruller's Correspondence" is an abstract representation of an old-fashioned post office, which includes both a "Dead Letter Office" and an "International Dead Letter Office".
*The 1998 feature film '' Dead Letter Office'' is based around the unrequited love and unfulfilled dreams of characters at an Australian DLO.
References
External links
{{NSRW Poster, Dead-Letter Office
Dead Letter Office
Smithsonian Arago — People, Postage and the Post
National Postal Museum
The National Postal Museum, located opposite Union Station in Washington, D.C., United States, covers large portions of the Postal history of the United States and other countries. It was established through joint agreement between the United ...
*
No return address
('' Smithsonian'' magazine, July 2000)
Mail Recovery Center Guidelines
USPS
The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or Postal Service, is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the ...
Dead Letter Office fees at different points in US history
Error
Postal systems
Philatelic terminology