Mail
Encyclopedia
For electronic mail, see Email
Email
Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...


Mail, or post, is a system for transporting letters and other tangible objects: written document
Document
The term document has multiple meanings in ordinary language and in scholarship. WordNet 3.1. lists four meanings :* document, written document, papers...

s, typically enclosed in envelope
Envelope
An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card....

s, and also small packages are delivered to destinations around the world. Anything sent through the postal system is called mail or post.

In principle, a postal service can be private or public. Governments often place restrictions on private postal delivery systems. Since the mid-19th century national postal systems have generally been established as government monopolies
Government monopoly
In economics, a government monopoly is a form of coercive monopoly in which a government agency or government corporation is the sole provider of a particular good or service and competition is prohibited by law...

 with a fee on the article prepaid. Proof of payment is often in the form of adhesive postage stamp
Postage stamp
A postage stamp is a small piece of paper that is purchased and displayed on an item of mail as evidence of payment of postage. Typically, stamps are made from special paper, with a national designation and denomination on the face, and a gum adhesive on the reverse side...

s, but postage meter
Postage meter
A postage meter is a mechanical device used to create and apply physical evidence of postage to mailed matter. Postage meters are regulated by a country's postal authority; for example, in the United States, the United States Postal Service specifies the rules for the creation, support, and use...

s are also used for bulk mailing.

Postal authorities often have functions other than transporting letters. In some countries, a Postal Telegraph and Telephone
Postal Telegraph and Telephone
A postal, telegraph, and telephone service is a government agency responsible for postal mail, telegraph, and telephone services. Such monopolies existed in many countries, though not in North America or Japan. Many PTTs have been partially or completely privatized in recent years...

 (PTT) service oversees the postal system as well as having authority over telephone and telegraph systems. Some countries' postal systems allow for savings accounts and handle applications for passports.

Early postal systems

The practice of communication by written documents carried by an intermediary from one person or place to another almost certainly dates back nearly to the invention of writing
Writing
Writing is the representation of language in a textual medium through the use of a set of signs or symbols . It is distinguished from illustration, such as cave drawing and painting, and non-symbolic preservation of language via non-textual media, such as magnetic tape audio.Writing most likely...

. However, development of formal postal systems occurred much later. The first documented use of an organized courier
Courier
A courier is a person or a company who delivers messages, packages, and mail. Couriers are distinguished from ordinary mail services by features such as speed, security, tracking, signature, specialization and individualization of express services, and swift delivery times, which are optional for...

 service for the diffusion of written documents is in Egypt
Egypt
Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

, where Pharaoh
Pharaoh
Pharaoh is a title used in many modern discussions of the ancient Egyptian rulers of all periods. The title originates in the term "pr-aa" which means "great house" and describes the royal palace...

s used couriers for the diffusion of their decrees in the territory of the State (2400 BC).

Persia

The first credible claim for the development of a real postal system comes from Ancient Persia but the point of invention remains in question. The best documented claim (Xenophon
Xenophon
Xenophon , son of Gryllus, of the deme Erchia of Athens, also known as Xenophon of Athens, was a Greek historian, soldier, mercenary, philosopher and a contemporary and admirer of Socrates...

) attributes the invention to the Persian King Cyrus the Great
Cyrus the Great
Cyrus II of Persia , commonly known as Cyrus the Great, also known as Cyrus the Elder, was the founder of the Achaemenid Empire. Under his rule, the empire embraced all the previous civilized states of the ancient Near East, expanded vastly and eventually conquered most of Southwest Asia and much...

 (550 BC), while other writers credit his successor Darius I of Persia
Darius I of Persia
Darius I , also known as Darius the Great, was the third king of kings of the Achaemenid Empire...

 (521 BC). Other sources claim much earlier dates for an Assyrian postal system, with credit given to Hammurabi
Hammurabi
Hammurabi Hammurabi Hammurabi (Akkadian from Amorite ʻAmmurāpi, "the kinsman is a healer", from ʻAmmu, "paternal kinsman", and Rāpi, "healer"; (died c...

 (1700 BC) and Sargon II (722 BC). Mail may not have been the primary mission of this postal service, however. The role of the system as an intelligence gathering apparatus is well documented, and the service was (later) called angariae, a term that in time turned to indicate a tax system. The Old Testament
Old Testament
The Old Testament, of which Christians hold different views, is a Christian term for the religious writings of ancient Israel held sacred and inspired by Christians which overlaps with the 24-book canon of the Masoretic Text of Judaism...

 (Esther
Esther
Esther , born Hadassah, is the eponymous heroine of the Biblical Book of Esther.According to the Bible, she was a Jewish queen of the Persian king Ahasuerus...

, VIII) makes mention of this system: Ahasuerus, king of Medes
Medes
The MedesThe Medes...

, used couriers for communicating his decisions.

The Persian system worked on stations (called Chapar-Khaneh
Chapar Khaneh
"Chapar Khaneh" or "Chapar-Khaneh" is a term in Persian, meaning the "house of courier" as "Chapar" means "courier", referring to the postal service used during the Achaemenid era. The system was created by Cyrus the Great the founder of the Persian Empire and later developed by Darius the Great,...

), where the message carrier (called Chapar
Chapar Khaneh
"Chapar Khaneh" or "Chapar-Khaneh" is a term in Persian, meaning the "house of courier" as "Chapar" means "courier", referring to the postal service used during the Achaemenid era. The system was created by Cyrus the Great the founder of the Persian Empire and later developed by Darius the Great,...

) would ride to the next post, whereupon he would swap his horse with a fresh one, for maximum performance and delivery speed. Herodotus
Herodotus
Herodotus was an ancient Greek historian who was born in Halicarnassus, Caria and lived in the 5th century BC . He has been called the "Father of History", and was the first historian known to collect his materials systematically, test their accuracy to a certain extent and arrange them in a...

 described the system in this way: "It is said that as many days as there are in the whole journey, so many are the men and horses that stand along the road, each horse and man at the interval of a day’s journey; and these are stayed neither by snow nor rain nor heat nor darkness from accomplishing their appointed course with all speed".

India

The economic growth and political stability under the Mauryan empire (322–185 BC) saw the development of impressive civil infrastructure in ancient India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. The Mauryans developed early Indian mail service as well as public wells, rest houses and other facilities for the common public. Common chariots called Dagana were sometimes used as mail chariots in ancient India.

In ancient times the kings, emperors, rulers, zamindars or the feudal lords protected their land through the intelligence services of specially trained police or military agencies and courier services to convey and obtain information through runners, messengers and even through pigeons. The chief of the secret service, known as the postmaster, maintained the lines of communication ... The people used to send letters to [their] distant relatives through their friends or neighbors.


In South India
South India
South India is the area encompassing India's states of Andhra Pradesh, Karnataka, Kerala and Tamil Nadu as well as the union territories of Lakshadweep and Pondicherry, occupying 19.31% of India's area...

, the Wodeyar dynasty (1399 - 1947) of the Kingdom of Mysore
Kingdom of Mysore
The Kingdom of Mysore was a kingdom of southern India, traditionally believed to have been founded in 1399 in the vicinity of the modern city of Mysore. The kingdom, which was ruled by the Wodeyar family, initially served as a vassal state of the Vijayanagara Empire...

 used mail service for espionage purposes thereby acquiring knowledge related to matters that took place at great distances.

By the end of the 18th century the postal system in India had reached impressive levels of efficiency. According to British
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 national Thomas Broughton, the Maharaja
Maharaja
Mahārāja is a Sanskrit title for a "great king" or "high king". The female equivalent title Maharani denotes either the wife of a Maharaja or, in states where that was customary, a woman ruling in her own right. The widow of a Maharaja is known as a Rajamata...

 of Jodhpur
Jodhpur
Jodhpur , is the second largest city in the Indian state of Rajasthan. It is located west from the state capital, Jaipur and from the city of Ajmer. It was formerly the seat of a princely state of the same name, the capital of the kingdom known as Marwar...

 sent daily offerings of fresh flowers from his capital to Nathadvara (320 km) and they arrived in time for the first religious Darshan
Darshan
or Darshan is a Sanskrit term meaning "sight" , vision, apparition, or glimpse. It is most commonly used for "visions of the divine" in Hindu worship, e.g. of a deity , or a very holy person or artifact...

 at sunrise. Later this system underwent complete modernization when the British Raj
British Raj
British Raj was the British rule in the Indian subcontinent between 1858 and 1947; The term can also refer to the period of dominion...

 established its full control over India. The Post Office Act XVII of 1837 provided that the Governor-General of India in Council had the exclusive right of conveying letters by post for hire within the territories of the East India Company. The mails were available to certain officials without charge, which became a controversial privilege as the years passed. On this basis the Indian Post Office was established on October 1, 1837.

China

China enjoyed postal relay stations since the Han dynasty
Han Dynasty
The Han Dynasty was the second imperial dynasty of China, preceded by the Qin Dynasty and succeeded by the Three Kingdoms . It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han. It was briefly interrupted by the Xin Dynasty of the former regent Wang Mang...

 (206 BC-220 AD). First largest postal system in the world was established by Ugedei Khan who was successor of Genghis Khan
Genghis Khan
Genghis Khan , born Temujin and occasionally known by his temple name Taizu , was the founder and Great Khan of the Mongol Empire, which became the largest contiguous empire in history after his death....

 of Mongolian empire in thirteen century including China. During the Yuan Dynasty
Yuan Dynasty
The Yuan Dynasty , or Great Yuan Empire was a ruling dynasty founded by the Mongol leader Kublai Khan, who ruled most of present-day China, all of modern Mongolia and its surrounding areas, lasting officially from 1271 to 1368. It is considered both as a division of the Mongol Empire and as an...

 under Kublai Khan
Kublai Khan
Kublai Khan , born Kublai and also known by the temple name Shizu , was the fifth Great Khan of the Mongol Empire from 1260 to 1294 and the founder of the Yuan Dynasty in China...

, China was integrated first into the much larger Örtöö
Yam (route)
Yam is a supply point route messenger system employed and extensively used and expanded by Genghis Khan and used by subsequent Great Khans and Khans.Relay stations were used to give food, shelter and spare horses for Mongol armies messengers...

 system of the Mongol Empire
Mongol Empire
The Mongol Empire , initially named as Greater Mongol State was a great empire during the 13th and 14th centuries...

.

Rome

The first well documented postal service is that of Rome
Rome
Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

. Organized at the time of Augustus Caesar (62 BC–AD 14
14
Year 14 was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Pompeius and Appuleius...

), it may also be the first true mail service. The service was called cursus publicus
Cursus publicus
The cursus publicus was the state-run courier and transportation service of the Roman Empire, later inherited by the Byzantine Empire. It was created by Emperor Augustus to transport messages, officials, and tax revenues from one province to another...

and was provided with light carriages called rhedæ with fast horses. Additionally, there was another slower service equipped with two-wheeled carts (birolæ) pulled by oxen. This service was reserved for government correspondence. Another service for citizens was later added.

Mongol Empire

Genghis Khan
Genghis Khan
Genghis Khan , born Temujin and occasionally known by his temple name Taizu , was the founder and Great Khan of the Mongol Empire, which became the largest contiguous empire in history after his death....

 installed an empire-wide messenger and postal station system named Örtöö within the Mongol Empire
Mongol Empire
The Mongol Empire , initially named as Greater Mongol State was a great empire during the 13th and 14th centuries...

. During the Yuan Dynasty
Yuan Dynasty
The Yuan Dynasty , or Great Yuan Empire was a ruling dynasty founded by the Mongol leader Kublai Khan, who ruled most of present-day China, all of modern Mongolia and its surrounding areas, lasting officially from 1271 to 1368. It is considered both as a division of the Mongol Empire and as an...

 under Kublai Khan
Kublai Khan
Kublai Khan , born Kublai and also known by the temple name Shizu , was the fifth Great Khan of the Mongol Empire from 1260 to 1294 and the founder of the Yuan Dynasty in China...

, this system also covered the territory of China. Postal stations were used not only for the transmission and delivery of official mail
Official mail
Official mail is mail sent from, or by an authorised department of government, governmental agency or international organization and normally has some indication that it is official; a certifying cachet, return address or other means of identity, indicating its user...

, but were also available for traveling officials, military men, and foreign dignitaries. These stations aided and facilitated the transport of foreign and domestic tribute, and trade in general.
By the end of Kublai Khan's rule there were more than 1400 postal stations in China alone, which in turn had at their disposal about 50000 horses, 1400 oxen, 6700 mules, 400 carts, 6000 boats, over 200 dogs and 1150 sheep.

The stations were 15 to 40 miles apart and had reliable attendants working for the mail service. Foreign observers, such as Marco Polo
Marco Polo
Marco Polo was a Venetian merchant traveler from the Venetian Republic whose travels are recorded in Il Milione, a book which did much to introduce Europeans to Central Asia and China. He learned about trading whilst his father and uncle, Niccolò and Maffeo, travelled through Asia and apparently...

 have attested to the efficiency of this early postal system.

Other systems

Another important postal service was created in the Islam
Islam
Islam . The most common are and .   : Arabic pronunciation varies regionally. The first vowel ranges from ~~. The second vowel ranges from ~~~...

ic world by the caliph
Caliph
The Caliph is the head of state in a Caliphate, and the title for the ruler of the Islamic Ummah, an Islamic community ruled by the Shari'ah. It is a transcribed version of the Arabic word   which means "successor" or "representative"...

Mu'awiyya; the service was called barid, by the name of the towers built to protect the roads by which couriers travelled.

Well before the Middle Ages
Middle Ages
The Middle Ages is a periodization of European history from the 5th century to the 15th century. The Middle Ages follows the fall of the Western Roman Empire in 476 and precedes the Early Modern Era. It is the middle period of a three-period division of Western history: Classic, Medieval and Modern...

 and during them, homing pigeon
Homing pigeon
The homing pigeon is a variety of domestic pigeon derived from the Rock Pigeon selectively bred to find its way home over extremely long distances. The wild rock pigeon has an innate homing ability, meaning that it will generally return to its own nest and its own mate...

s were used for pigeon post
Pigeon post
Pigeon post is the use of homing pigeons to carry messages. Pigeons were effective as messengers due to their natural homing abilities. The pigeons were transported to a destination in cages, where they would be attached with messages, then naturally the pigeon would fly back to its home where the...

, taking advantage of a singular quality of this bird, which when taken far from its nest is able to find his way home due to a particularly developed sense of orientation. Messages were then tied around the legs of the pigeon, which was freed and could reach his original nest.

Mail has been transported by quite a few other methods throughout history, including dogsled, balloon
Balloon
A balloon is an inflatable flexible bag filled with a gas, such as helium, hydrogen, nitrous oxide, oxygen, or air. Modern balloons can be made from materials such as rubber, latex, polychloroprene, or a nylon fabric, while some early balloons were made of dried animal bladders, such as the pig...

, rocket
Rocket
A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engine. In all rockets, the exhaust is formed entirely from propellants carried within the rocket before use. Rocket engines work by action and reaction...

, mule
Mule
A mule is the offspring of a male donkey and a female horse. Horses and donkeys are different species, with different numbers of chromosomes. Of the two F1 hybrids between these two species, a mule is easier to obtain than a hinny...

, pneumatic tubes and even submarine
Submarine
A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

.

Charlemagne
Charlemagne
Charlemagne was King of the Franks from 768 and Emperor of the Romans from 800 to his death in 814. He expanded the Frankish kingdom into an empire that incorporated much of Western and Central Europe. During his reign, he conquered Italy and was crowned by Pope Leo III on 25 December 800...

 extended to the whole territory of his empire the system used by Franks
Franks
The Franks were a confederation of Germanic tribes first attested in the third century AD as living north and east of the Lower Rhine River. From the third to fifth centuries some Franks raided Roman territory while other Franks joined the Roman troops in Gaul. Only the Salian Franks formed a...

 in northern Gaul
Gaul
Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

, and connected this service with the service of missi dominici
Missus dominicus
A missus dominicus , Latin for "envoy[s] of the lord [ruler]", also known in Dutch as Zendgraaf , meaning "sent Graf", was an official commissioned by the Frankish king or Holy Roman Emperor to supervise the administration, mainly of justice, in parts of his dominions too far for frequent personal...

.

Many religious orders had a private mail service, notably Cistercians' one connected more than 6,000 abbey
Abbey
An abbey is a Catholic monastery or convent, under the authority of an Abbot or an Abbess, who serves as the spiritual father or mother of the community.The term can also refer to an establishment which has long ceased to function as an abbey,...

s, monasteries
Monastery
Monastery denotes the building, or complex of buildings, that houses a room reserved for prayer as well as the domestic quarters and workplace of monastics, whether monks or nuns, and whether living in community or alone .Monasteries may vary greatly in size – a small dwelling accommodating only...

 and churches. The best organization however was created by the Knights Templar
Knights Templar
The Poor Fellow-Soldiers of Christ and of the Temple of Solomon , commonly known as the Knights Templar, the Order of the Temple or simply as Templars, were among the most famous of the Western Christian military orders...

. The newly instituted universities
University
A university is an institution of higher education and research, which grants academic degrees in a variety of subjects. A university is an organisation that provides both undergraduate education and postgraduate education...

 too had their private services, starting from Bologna
Bologna
Bologna is the capital city of Emilia-Romagna, in the Po Valley of Northern Italy. The city lies between the Po River and the Apennine Mountains, more specifically, between the Reno River and the Savena River. Bologna is a lively and cosmopolitan Italian college city, with spectacular history,...

 (1158).

Popular illiteracy was accommodated through the service of scribes. Illiterates who needed to communicate dictated their messages to a scribe
Scribe
A scribe is a person who writes books or documents by hand as a profession and helps the city keep track of its records. The profession, previously found in all literate cultures in some form, lost most of its importance and status with the advent of printing...

, another profession now quite generally disappeared.

In 1505, Holy Roman Emperor
Holy Roman Emperor
The Holy Roman Emperor is a term used by historians to denote a medieval ruler who, as German King, had also received the title of "Emperor of the Romans" from the Pope...

 Maximilian I
Maximilian I, Holy Roman Emperor
Maximilian I , the son of Frederick III, Holy Roman Emperor and Eleanor of Portugal, was King of the Romans from 1486 and Holy Roman Emperor from 1493 until his death, though he was never in fact crowned by the Pope, the journey to Rome always being too risky...

 established a postal system in the Empire, appointing Franz von Thurn und Taxis to run it. The Thurn and Taxis family, then known as Tassis, had operated postal services between Italian city states from 1290 onwards. Following the abolition of the Empire in 1806 the Thurn and Taxis postal system continued as a private organisation, continuing to exist into the postage stamp era before finally being absorbed into the postal system of the new German Empire after 1871.

Postal reforms

In the United Kingdom, prior to 1840 the postal system was expensive, confusing and seen as corrupt. Letters were paid for by the recipient rather than the sender, and were charged according to the distance the letter had travelled and the number of sheets of paper it contained. If there is one man who can be said to have changed the face of the postal service forever it is Sir Rowland Hill
Rowland Hill (postal reformer)
Sir Rowland Hill KCB, FRS was an English teacher, inventor and social reformer. He campaigned for a comprehensive reform of the postal system, based on the concept of penny postage and his solution of prepayment, facilitating the safe, speedy and cheap transfer of letters...

, with his reforms of the postal system based on the concept of penny postage, and his solution of pre payment. In his proposal Hill also called for official pre-printed envelopes
Mulready stationery
Mulready stationery describes the postal stationery lettersheets and pre-gummed envelopes that were introduced as part of the British Post Office postal reforms of 1840. They went on sale on 1 May, 1840, and were valid for use from 6 May...

 and adhesive postage stamp
Postage stamp
A postage stamp is a small piece of paper that is purchased and displayed on an item of mail as evidence of payment of postage. Typically, stamps are made from special paper, with a national designation and denomination on the face, and a gum adhesive on the reverse side...

s as alternative ways of getting the sender to pay for the postage, at a time when prepayment was optional, which led to the invention of the postage stamp, the Penny Black
Penny Black
The Penny Black was the world's first adhesive postage stamp used in a public postal system. It was issued in Britain on 1 May 1840, for official use from 6 May of that year....

.

It was around this time nationalization and centralization of most postal systems took place. Today, the study of mail systems is known as postal history
Postal history
Postal history is the study of postal systems and how they operate and, or, the study of postage stamps and covers and associated material illustrating historical episodes of postal systems...

.

Modern transportation and technology

The postal system was important in the development of modern transportation. Railroads carried railway post office
Railway post office
In the United States a railway post office, commonly abbreviated as RPO, was a railroad car that was normally operated in passenger service as a means to sort mail en route, in order to speed delivery. The RPO was staffed by highly trained Railway Mail Service postal clerks, and was off-limits to...

s. During the 20th century, air mail became the transport of choice for inter-continental mail. Postmen started to utilize mail truck
Mail truck
A mail van or mail truck is a delivery vehicle that is used to distribute mail.- Evolution :...

s. The handling of mail became increasingly automated.

The Internet
Internet
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...

 came to change the conditions for physical mail. E-mail (and in recent years social networking sites) became a fierce competitor, but online auctions and Internet shopping opened new business opportunities as people often get items bought online through the mail.

Etymology

The word mail comes from the Medieval English word male (spelled that way until the 17th century, distinct from male
Male
Male refers to the biological sex of an organism, or part of an organism, which produces small mobile gametes, called spermatozoa. Each spermatozoon can fuse with a larger female gamete or ovum, in the process of fertilization...

), which was the term used to describe a traveling bag or pack. The French have a similar word, malle for a trunk or large box, and mála is the Irish for a bag. In the 17th century the word mail began to appear as a reference for a bag that contained letters: "bag full of letter" (1654). Over the next hundred years the word mail began to be applied strictly to the letters themselves, and the sack as the mailbag. In the 19th century the British usually referred to mail as being letters that were being sent abroad (i.e. on a ship), and post as letters that were for localized delivery; in the UK the Royal Mail
Royal Mail
Royal Mail is the government-owned postal service in the United Kingdom. Royal Mail Holdings plc owns Royal Mail Group Limited, which in turn operates the brands Royal Mail and Parcelforce Worldwide...

 delivers the post, while in the USA the US Postal Service delivers the mail. The term e-mail (short for "electronic mail") first appeared in 1982. The term snail-mail is a retronym
Retronym
A retronym is a type of neologism that provides a new name for an object or concept to differentiate the original form or version of it from a more recent form or version. The original name is most often augmented with an adjective to account for later developments of the object or concept itself...

 that originated in 1983 to distinguish it from the quicker e-mail.

Modern mail

Modern mail is organized by national and privatized services, which are reciprocally interconnected by international regulations, organizations and international agreements. Paper letters and parcels can be sent to almost any country in the world relatively easily and cheaply. The Internet
Internet
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...

 has made the process of sending letter-like messages nearly instantaneous, and in many cases and situations correspondents use electronic mail where previously they would have used letters (though the volume of paper mail continues to increase.)

Organization

Some countries have organized their mail services as public limited liability corporations without a legal monopoly
Legal monopoly
A legal monopoly, statutory monopoly, or de jure monopoly is a monopoly that is protected by law from competition. A statutory monopoly may take the form of a government monopoly where the state owns the particular means of production or government-granted monopoly where a private interest is...

.

The worldwide postal system comprising the individual national postal systems of the world's self-governing states is co-ordinated by the Universal Postal Union
Universal Postal Union
The Universal Postal Union is an international organization that coordinates postal policies among member nations, in addition to the worldwide postal system. The UPU contains four bodies consisting of the Congress, the Council of Administration , the Postal Operations Council and the...

, which among other things sets international postage rates, defines standards for postage stamp
Postage stamp
A postage stamp is a small piece of paper that is purchased and displayed on an item of mail as evidence of payment of postage. Typically, stamps are made from special paper, with a national designation and denomination on the face, and a gum adhesive on the reverse side...

s and operates the system of International Reply Coupon
International reply coupon
An international reply coupon is a coupon that can be exchanged for one or more postage stamps representing the minimum postage for an unregistered priority airmail letter of up to twenty grams sent to another Universal Postal Union member country...

s.

In most countries a system of codes has been created (they are called ZIP Code
ZIP Code
ZIP codes are a system of postal codes used by the United States Postal Service since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the...

s
in the United States, postcodes in the United Kingdom and Australia, and postal code
Postal code
A postal code is a series of letters and/or digits appended to a postal address for the purpose of sorting mail. Once postal codes were introduced, other applications became possible.In February 2005, 117 of the 190 member countries of the Universal Postal Union had postal code systems...

s
in most other countries), in order to facilitate the automation of operations. This also includes placing additional marks on the address portion of the letter or mailed object, called "bar coding." Bar coding of mail for delivery is usually expressed either by a series of vertical bars, usually called POSTNET
POSTNET
POSTNET is a barcode symbology that was used by the United States Postal Service to assist in directing mail. The ZIP Code or ZIP+4 code is encoded in half- and full-height bars...

 coding, or a block of dots as a two-dimensional barcode. The "block of dots" method allows for the encoding of proof of payment of postage, exact routing for delivery, and other features.

The ordinary mail service was improved in the 20th century with the use of planes
Airmail
Airmail is mail that is transported by aircraft. It typically arrives more quickly than surface mail, and usually costs more to send...

 for a quicker delivery. The world's first scheduled airmail post service took place in the United Kingdom between the London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

 suburbs of Hendon
Hendon
Hendon is a London suburb situated northwest of Charing Cross.-History:Hendon was historically a civil parish in the county of Middlesex. The manor is described in Domesday , but the name, 'Hendun' meaning 'at the highest hill', is earlier...

, North London
North London
North London is the northern part of London, England. It is an imprecise description and the area it covers is defined differently for a range of purposes. Common to these definitions is that it includes districts located north of the River Thames and is used in comparison with South...

, and Windsor
Windsor, Berkshire
Windsor is an affluent suburban town and unparished area in the Royal Borough of Windsor and Maidenhead in Berkshire, England. It is widely known as the site of Windsor Castle, one of the official residences of the British Royal Family....

, Berkshire
Berkshire
Berkshire is a historic county in the South of England. It is also often referred to as the Royal County of Berkshire because of the presence of the royal residence of Windsor Castle in the county; this usage, which dates to the 19th century at least, was recognised by the Queen in 1957, and...

, on 9 September 1911. Some methods of airmail proved ineffective, however, including the United States Postal Service's experiment with rocket mail
Rocket mail
Rocket mail is the delivery of mail by rocket or missile. The rocket would land by deploying an internal parachute upon arrival. It has been attempted by various organizations in many different countries, with varying levels of success...

.

Receipts services were made available in order to grant the sender a confirmation of effective delivery.

Mail going to naval vessels is known as the Fleet Post Office
Military mail
A primary feature of military mail systems is that normally they are subsidized to ensure that military mail posted between duty stations abroad and the home country does not cost the sender any more than normal domestic mail traffic...

.

Payment

Worldwide the most common method of prepaying postage is by buying an adhesive postage stamp
Postage stamp
A postage stamp is a small piece of paper that is purchased and displayed on an item of mail as evidence of payment of postage. Typically, stamps are made from special paper, with a national designation and denomination on the face, and a gum adhesive on the reverse side...

 to be applied to the envelope before mailing; a much less common method is to use a postage-prepaid envelope
Envelope
An envelope is a common packaging item, usually made of thin flat material. It is designed to contain a flat object, such as a letter or card....

. Franking
Franking
Franking are any and all devices or markings such as postage stamps , printed or stamped impressions, codings, labels, manuscript writings , and/or any other authorized form of markings affixed or applied to mails to qualify them to be postally serviced.-Franking types and...

 is a method of creating postage-prepaid envelopes under licence using a special machine. They are used by companies with large mail programs such as bank
Bank
A bank is a financial institution that serves as a financial intermediary. The term "bank" may refer to one of several related types of entities:...

s and direct mail
Direct mail
Advertising mail, also known as direct mail, junk mail, or admail, is the delivery of advertising material to recipients of postal mail. The delivery of advertising mail forms a large and growing service for many postal services, and direct-mail marketing forms a significant portion of the direct...

 companies.

In 1998, the U.S. Postal Service
United States Postal Service
The United States Postal Service is an independent agency of the United States government responsible for providing postal service in the United States...

 authorised the first tests of a secure system of sending digital franks via the Internet
Internet
The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite to serve billions of users worldwide...

 to be printed out on a PC printer, obviating the necessity to license a dedicated franking machine and allowing companies with smaller mail programs to make use of the option; this was later expanded to test the use of personalised postage. The service provided by the U.S. Postal Service in 2003 allows the franks to be printed out on special adhesive-backed labels.
In 2004 the Royal Mail
Royal Mail
Royal Mail is the government-owned postal service in the United Kingdom. Royal Mail Holdings plc owns Royal Mail Group Limited, which in turn operates the brands Royal Mail and Parcelforce Worldwide...

 in the United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 introduced its SmartStamp Internet-based system, allowing printing on ordinary adhesive labels or envelopes. Similar systems are being considered by postal administrations around the world.

When the pre-paid envelope or package is accepted into the mail by an agent of the postal service, the agent usually indicates by means of a cancellation that it is no longer valid for pre-payment of postage. The exceptions are when the agent forgets or neglects to cancel the mailpiece, for stamps that are pre-cancelled and thus do not require cancellation and for, in most cases, metered mail. (The "personalised stamps" authorized by the USPS and manufactured by Zazzle and other companies are in fact a form of meter label and thus do not need to be cancelled.)

Rules and etiquette

Documents should generally not be read by anyone other than the addressee; for instance, in the United States it is a violation of federal law for anyone other than the addressee to open mail. There are exceptions though: executives often delegate to secretaries or assistants the task of dealing with their mail; and postcards do not require opening and can be read by anybody. For mail contained within an envelope, there are legal provisions in some jurisdictions allowing the recording identities. The privacy of correspondence is guaranteed by the constitutions of Mexico
Constitution of Mexico
The Political Constitution of the United Mexican States is the current constitution of Mexico. It was drafted in Santiago de Querétaro, in the State of Querétaro, by a constitutional convention, during the Mexican Revolution. It was approved by the Constitutional Congress on February 5, 1917...

 and Brazil
Constitution of Brazil
During its independent political history, Brazil has had seven constitutions. The most recent was ratified on October 5, 1988.-Imperial Constitution :Background...

, and is alluded to in the European Convention of Human Rights and the Universal Declaration of Human Rights
Universal Declaration of Human Rights
The Universal Declaration of Human Rights is a declaration adopted by the United Nations General Assembly . The Declaration arose directly from the experience of the Second World War and represents the first global expression of rights to which all human beings are inherently entitled...

. Subject to the laws in the relevant jurisdiction, correspondence may be openly or covertly opened, or the contents determined via some other method, by the police or other authorities in some cases relating to a suspected criminal conspiracy, although black chamber
Black Chamber
The Cipher Bureau otherwise known as The Black Chamber was the United States' first peacetime cryptanalytic organization, and a forerunner of the National Security Agency...

s (largely in the past, though there is apparently some continuance of their use today) opened and open letters extralegally. Military mail
Military mail
A primary feature of military mail systems is that normally they are subsidized to ensure that military mail posted between duty stations abroad and the home country does not cost the sender any more than normal domestic mail traffic...

 to and from soldiers on active deployment is more often subject to strict censorship. International mail and packages are subject to customs
Customs
Customs is an authority or agency in a country responsible for collecting and safeguarding customs duties and for controlling the flow of goods including animals, transports, personal effects and hazardous items in and out of a country...

 control.

Control of private citizens' mail based on its content is a form of censorship
Censorship
thumb|[[Book burning]] following the [[1973 Chilean coup d'état|1973 coup]] that installed the [[Military government of Chile |Pinochet regime]] in Chile...

 and concerns social, political, and legal aspects of civil rights
Civil rights
Civil and political rights are a class of rights that protect individuals' freedom from unwarranted infringement by governments and private organizations, and ensure one's ability to participate in the civil and political life of the state without discrimination or repression.Civil rights include...

. There have been cases over the centuries of governments illegally opening and copying or photographing the contents of private mail. While in most cases this censorship is exceptional, in the military, censorship of mail is routine and almost universally applied, particularly with respect to soldiers near a battlefront.

Modern alternatives such as the telegraph, telephone
Telephone
The telephone , colloquially referred to as a phone, is a telecommunications device that transmits and receives sounds, usually the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other...

, telex
Telex
Telex may refer to:* Telex , , a communications network** Teleprinter, the device used on the above network* Telex , a Belgian pop group...

, facsimile
Facsimile
A facsimile is a copy or reproduction of an old book, manuscript, map, art print, or other item of historical value that is as true to the original source as possible. It differs from other forms of reproduction by attempting to replicate the source as accurately as possible in terms of scale,...

, and e-mail
E-mail
Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...

 have reduced the attractiveness of paper mail for many applications. These modern alternatives have some advantages: in addition to their speed, they may be more secure, e.g. because strangers cannot learn the sender's address from the envelope, and occasionally traditional items of mail may fail to arrive, e.g. due to vandalism to mailboxes, unfriendly pets and adverse weather conditions. On the other hand traditional mail avoids the possibility of computer malfunctions and malware
Malware
Malware, short for malicious software, consists of programming that is designed to disrupt or deny operation, gather information that leads to loss of privacy or exploitation, or gain unauthorized access to system resources, or that otherwise exhibits abusive behavior...

, and the recipient does not need to print it out. Due to perceived hazards or inconveniences postal carriers may refuse, officially or otherwise, to deliver mail to a particular address (for instance, if there is no clear path to the door or mailbox). Postal mail is, however, still widely used for business and personal communications for various reasons including legal requirements for signature
Signature
A signature is a handwritten depiction of someone's name, nickname, or even a simple "X" that a person writes on documents as a proof of identity and intent. The writer of a signature is a signatory. Similar to a handwritten signature, a signature work describes the work as readily identifying...

s, the requirements of, etiquette, and the requirement to enclose physical objects. For example, wedding
Wedding
A wedding is the ceremony in which two people are united in marriage or a similar institution. Wedding traditions and customs vary greatly between cultures, ethnic groups, religions, countries, and social classes...

 invitations in some Western countries are customarily sent by mail.

Rise of electronic correspondence

Since the advent of e-mail
E-mail
Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...

, which is universally faster (barring some extreme technical glitch, computer virus or the like), the postal system has come to be referred to in Internet slang
Internet slang
Internet slang is a type of slang that Internet users have popularized, and in many cases, have coined. Such terms often originate with the purpose of saving keystrokes. Many people use the same abbreviations in texting and instant messaging, and social networking websites...

 by the retronym
Retronym
A retronym is a type of neologism that provides a new name for an object or concept to differentiate the original form or version of it from a more recent form or version. The original name is most often augmented with an adjective to account for later developments of the object or concept itself...

 "snail mail
Snail mail
Snail mail or smail is a dysphemistic retronym—named after the snail with its slow speed—used to refer to letters and missives carried by conventional postal delivery services. The phrase refers to the lag-time between dispatch of a letter and its receipt, versus the virtually instantaneous...

". Occasionally, the term "white mail" or "the PaperNet" has also been used as a neutral term for postal mail.

In modern times, mainly in the 20th century, mail has found an evolution in vehicles using newer technologies to deliver the documents, especially through the telephone
Telephone
The telephone , colloquially referred to as a phone, is a telecommunications device that transmits and receives sounds, usually the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other...

 network; these new vehicles include telegram, telex
Teleprinter
A teleprinter is a electromechanical typewriter that can be used to communicate typed messages from point to point and point to multipoint over a variety of communication channels that range from a simple electrical connection, such as a pair of wires, to the use of radio and microwave as the...

, facsimile (fax
Fax
Fax , sometimes called telecopying, is the telephonic transmission of scanned printed material , normally to a telephone number connected to a printer or other output device...

), e-mail
E-mail
Electronic mail, commonly known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the...

, and short message service (SMS
Short message service
Short Message Service is a text messaging service component of phone, web, or mobile communication systems, using standardized communications protocols that allow the exchange of short text messages between fixed line or mobile phone devices...

). There have been methods which have combined mail and some of these newer methods, such as INTELPOST, which combined facsimile transmission with overnight delivery. These vehicles commonly use a mechanical or electro-mechanical standardised writing (typing), that on the one hand makes for more efficient communication, while on the other hand makes impossible characteristics and practices that traditionally were in conventional mail, such as calligraphy
Calligraphy
Calligraphy is a type of visual art. It is often called the art of fancy lettering . A contemporary definition of calligraphic practice is "the art of giving form to signs in an expressive, harmonious and skillful manner"...

.

This epoch is undoubtedly mainly dominated by mechanical writing, with a general use of no more of half a dozen standard typographic fonts
Typeface
In typography, a typeface is the artistic representation or interpretation of characters; it is the way the type looks. Each type is designed and there are thousands of different typefaces in existence, with new ones being developed constantly....

 from standard keyboards. However, the increased use of typewritten or computer-printed letters for personal communication and the advent of e-mail have sparked renewed interest in calligraphy, as a letter has become more of a "special event". Long before e-mail and computer-printed letters, however, decorated envelopes, rubber stamps and artistamps formed part of the medium of mail art
Mail art
Mail art is a worldwide cultural movement that began in the early 1960s and involves sending visual art through the international postal system. Mail Art is also known as Postal Art or Correspondence Art...

.

In the 2000s with the advent of eBay
EBay
eBay Inc. is an American internet consumer-to-consumer corporation that manages eBay.com, an online auction and shopping website in which people and businesses buy and sell a broad variety of goods and services worldwide...

 and other online auction sites and online stores, postal services in industrialized nations have seen a major shift to item shipping. This has been seen as a boost to the system's usage in the wake of lower paper mail volume due to the accessibility of e-mail.

Online post offices have emerged to give recipients a means of receiving traditional correspondence mail in a scanned electronic format.

Collecting

Postage stamps are also object of a particular form of collecting
Collecting
The hobby of collecting includes seeking, locating, acquiring, organizing, cataloging, displaying, storing, and maintaining whatever items are of interest to the individual collector. Some collectors are generalists, accumulating merchandise, or stamps from all countries of the world...

, and in some cases, when demand greatly exceeds supply, their commercial value on this specific market may become enormously greater than face value, even after use. For some postal services the sale of stamps to collectors who will never use them is a significant source of revenue for example postage stamps from Tokelau, South Georgia & South Sandwich Islands, Tristan da Cunha, Niuafo´ou and many others. Stamp collecting
Stamp collecting
Stamp collecting is the collecting of postage stamps and related objects. It is one of the world's most popular hobbies, with the number of collectors in the United States alone estimated to be over 20 million.- Collecting :...

 is commonly known as philately
Philately
Philately is the study of stamps and postal history and other related items. Philately involves more than just stamp collecting, which does not necessarily involve the study of stamps. It is possible to be a philatelist without owning any stamps...

, although strictly the latter term refers to the study of stamps.

Another form of collecting regards postcard
Postcard
A postcard or post card is a rectangular piece of thick paper or thin cardboard intended for writing and mailing without an envelope....

s, a document written on a single robust sheet of paper, usually decorated with photographic pictures or artistic drawings on one of the sides, and short messages on a small part of the other side, that also contained the space for the address. In strict philatelic usage, the postcard is to be distinguished from the postal card
Postal card
Postal cards are postal stationery with an imprinted stamp or indicium signifying the prepayment of postage. They are sold by postal authorities. In January, 1869 Emanuel Herrmann of Austria described the advantages of a Correspondenz Karte. By October, 1869 the world's first postal card was...

, which has a pre-printed postage on the card. The fact that this communication is visible by other than the receiver often causes the messages to be written in jargon
Jargon
Jargon is terminology which is especially defined in relationship to a specific activity, profession, group, or event. The philosophe Condillac observed in 1782 that "Every science requires a special language because every science has its own ideas." As a rationalist member of the Enlightenment he...

.

Letters are often studied as an example of literature
Literature
Literature is the art of written works, and is not bound to published sources...

, and also in biography
Biography
A biography is a detailed description or account of someone's life. More than a list of basic facts , biography also portrays the subject's experience of those events...

 in the case of a famous person. A portion of the New Testament
New Testament
The New Testament is the second major division of the Christian biblical canon, the first such division being the much longer Old Testament....

 of the Bible
Bible
The Bible refers to any one of the collections of the primary religious texts of Judaism and Christianity. There is no common version of the Bible, as the individual books , their contents and their order vary among denominations...

 is composed of the Apostle Paul's epistle
Epistle
An epistle is a writing directed or sent to a person or group of people, usually an elegant and formal didactic letter. The epistle genre of letter-writing was common in ancient Egypt as part of the scribal-school writing curriculum. The letters in the New Testament from Apostles to Christians...

s to Christian congregations in various parts of the Roman Empire. See below for a list of famous letters.

A style of writing, called epistolary, tells a fictional story in the form of the correspondence between two or more characters.

A make-shift mail method after stranding on a deserted island
Island
An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 is a message in a bottle
Message in a bottle
A message in a bottle is a form of communication whereby a message is sealed in a container and released into the sea or ocean...

.

Deregulation

Several countries, including Sweden
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 (1 January 1993), New Zealand
New Zealand
New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

 (1998 and 2003), Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 (2005 and 2007) and Argentina
Argentina
Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 have opened up the postal services market to new entrants. In the case of New Zealand Post Limited
New Zealand Post
New Zealand Post, commonly referred by its acronym, NZPost is a State owned enterprise responsible for providing postal service in New Zealand.-History:...

, this included (from 2003) its right to be the sole New Zealand postal administration member of the Universal Postal Union
Universal Postal Union
The Universal Postal Union is an international organization that coordinates postal policies among member nations, in addition to the worldwide postal system. The UPU contains four bodies consisting of the Congress, the Council of Administration , the Postal Operations Council and the...

, thus the ending of its monopoly on stamps bearing the name New Zealand.

Letters

Letter-sized mail comprises the bulk of the contents sent through most postal services. These are usually documents printed on A4 (210×297 mm), Letter-sized (8.5×11 inches), or smaller paper and placed in envelopes.

While many things are sent through the mail, interpersonal letters are often thought of first in reference to postal systems. Handwritten correspondence, while once a major means of communications between distant people, is now used less frequently due to the advent of more immediate means of communication, such as the telephone or e-mail. Traditional letters, however, are often considered to harken back to a "simpler time" and are still used when someone wishes to be deliberate and thoughtful about his or her communication. An example would be a letter of sympathy to a bereaved person.

Bills and invoices are often sent through the mail, like regular billing correspondence from utility
Utility
In economics, utility is a measure of customer satisfaction, referring to the total satisfaction received by a consumer from consuming a good or service....

 companies and other service providers. These letters often contain a self-addressed, envelope that allows the receiver to remit payment back to the company easily. While still very common, many people now opt to use online bill payment services, which eliminate the need to receive bills through the mail. Paperwork for the confirmation of large financial transactions is often sent through the mail. Many tax documents are as well.

New credit cards and their corresponding personal identification numbers are sent to their owners through the mail. The card and number are usually mailed separately several days or weeks apart for security reasons.

Bulk mail
Bulk mail
Bulk mail broadly refers to mail that is mailed and processed in bulk at reduced rates. The term does not denote any particular purpose for the mail; but in general usage is synonymous with "junk mail."...

 is mail that is prepared for bulk mailing, often by presorting, and processing at reduced rates. It is often used in direct marketing
Direct marketing
Direct marketing is a channel-agnostic form of advertising that allows businesses and nonprofits to communicate straight to the customer, with advertising techniques such as mobile messaging, email, interactive consumer websites, online display ads, fliers, catalog distribution, promotional...

 and other advertising mail, although it has other uses as well. The senders of these messages sometimes purchase lists of addresses (which are sometimes targeted towards certain demographics
Demographics
Demographics are the most recent statistical characteristics of a population. These types of data are used widely in sociology , public policy, and marketing. Commonly examined demographics include gender, race, age, disabilities, mobility, home ownership, employment status, and even location...

) and then send letters advertising their product or service to all recipients. Other times, commercial solicitations are sent by local companies advertising local products, like a restaurant
Restaurant
A restaurant is an establishment which prepares and serves food and drink to customers in return for money. Meals are generally served and eaten on premises, but many restaurants also offer take-out and food delivery services...

 delivery service advertising to their delivery area or a retail
Retail
Retail consists of the sale of physical goods or merchandise from a fixed location, such as a department store, boutique or kiosk, or by mail, in small or individual lots for direct consumption by the purchaser. Retailing may include subordinated services, such as delivery. Purchasers may be...

 store sending their weekly advertising circular to a general area. Bulk mail is also often sent to companies' existing subscriber bases, advertising new products or services.

There are a number of other things almost without any exception sent exclusively as letters through postal services, like wedding invitations.

First-class

First-class mail in the U.S. includes postcards, letters, large envelopes (flats) and small packages, providing each piece weighs 13 ounces or less. Delivery is given priority over second-class (newspaper
Newspaper
A newspaper is a scheduled publication containing news of current events, informative articles, diverse features and advertising. It usually is printed on relatively inexpensive, low-grade paper such as newsprint. By 2007, there were 6580 daily newspapers in the world selling 395 million copies a...

s and magazine
Magazine
Magazines, periodicals, glossies or serials are publications, generally published on a regular schedule, containing a variety of articles. They are generally financed by advertising, by a purchase price, by pre-paid magazine subscriptions, or all three...

s), third class (bulk advertisements), and fourth-class mail (books and media packages). First-class mail prices are based on both the shape and weight of the item being mailed. Pieces over 13 ounces can be sent as Priority Mail. In the U.K., First Class letters are simply a priority option over Second Class, at a slightly higher cost. Royal Mail aims to (but does not guarantee to) deliver all First Class letters the day after postage.

Registered and recorded mail

Registered mail allows the location and in particular the correct delivery of a letter to be tracked. It is usually considerably more expensive than regular mail, and is typically used for legal documents, to obtain a proof of delivery.

Repositionable notes

The United States Postal Service
United States Postal Service
The United States Postal Service is an independent agency of the United States government responsible for providing postal service in the United States...

 introduced a test allowing "repositionable notes" (for example, 3M's Post-it notes) to be attached to the outside of envelopes and bulk mailings, afterwards extending the test for an unspecified period.

Postal cards and postcards

Postal card
Postal card
Postal cards are postal stationery with an imprinted stamp or indicium signifying the prepayment of postage. They are sold by postal authorities. In January, 1869 Emanuel Herrmann of Austria described the advantages of a Correspondenz Karte. By October, 1869 the world's first postal card was...

s and postcard
Postcard
A postcard or post card is a rectangular piece of thick paper or thin cardboard intended for writing and mailing without an envelope....

s are small message cards which are sent by mail unenveloped; the distinction often, though not invariably and reliably, drawn between them is that "postal cards" are issued by the postal authority or entity with the "postal indica" (or "stamp") preprinted on them, while postcards are privately issued and require affixing an adhesive stamp (though there have been some cases of a postal authority's issuing non-stamped postcards). Postcards are often printed to promote tourism, with pictures of resorts, tourist attractions or humorous messages on the front and allowing for a short message from the sender to be written on the back. The postage required for postcards is generally less than postage required for standard letters; however, certain technicalities such as their being oversized or having cut-outs may result in payment of the first-class rate being required.

Postcards are also used by magazine
Magazine
Magazines, periodicals, glossies or serials are publications, generally published on a regular schedule, containing a variety of articles. They are generally financed by advertising, by a purchase price, by pre-paid magazine subscriptions, or all three...

s for new subscriptions. Inside many magazines are postage-paid subscription cards that a reader can fill out and mail back to the publishing company to be billed for a subscription to the magazine. In this fashion, magazines also use postcards for other purposes, including reader surveys, contests or information requests.

Postcards are sometimes sent by charities to their members with a message to be signed and sent to a politician (e.g. to promote fair trade
Fair trade
Fair trade is an organized social movement and market-based approach that aims to help producers in developing countries make better trading conditions and promote sustainability. The movement advocates the payment of a higher price to producers as well as higher social and environmental standards...

 or third world debt cancellation).

Other mail services

Larger envelopes are also sent through the mail. These are often made of sturdier material than standard envelopes and are often used by businesses to transport documents that are not to be folded or damaged, such as legal documents and contracts. Due to their size, larger envelopes are sometimes charged additional postage.

Packages are often sent through some postal services, usually requiring additional postage than an average letter or postcard. Many postal services have limits on what can and cannot be sent inside packages, usually placing limits or bans on perishable, hazardous or flammable materials. Some hazardous materials in limited quantities may be shipped with appropriate markings and packaging, like an ORM-D
ORM-D
ORM-D is a marking for mail or shipping in the United States that identifies other regulated materials for domestic transport only. Packages bearing this mark contain hazardous material in a limited quantity that presents a limited hazard during transportation, due to its form, quantity, and...

 label. Additionally, because of terrorism
Terrorism
Terrorism is the systematic use of terror, especially as a means of coercion. In the international community, however, terrorism has no universally agreed, legally binding, criminal law definition...

 concerns, the U.S. Postal Service subjects their packages to various security tests, often scanning or x-ray
X-ray
X-radiation is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma...

ing packages for materials that might be found in mail bombs.

Newspapers and magazine
Magazine
Magazines, periodicals, glossies or serials are publications, generally published on a regular schedule, containing a variety of articles. They are generally financed by advertising, by a purchase price, by pre-paid magazine subscriptions, or all three...

s are also sent through postal services. Many magazines are simply placed in the mail normally (but in the U.S., they are printed with a special bar code that acts as pre-paid postage - see POSTNET
POSTNET
POSTNET is a barcode symbology that was used by the United States Postal Service to assist in directing mail. The ZIP Code or ZIP+4 code is encoded in half- and full-height bars...

), but many are now shipped in shrinkwrap to protect the loose contents of the magazine. During the second half of the 19th century and the first half of the 20th century newspapers and magazines were normally posted using wrappers
Wrapper (philately)
In philately a wrapper is a form of postal stationery which pays the cost of the delivery of a newspaper or a periodical. The wrapper is a sheet of paper, large enough to wrap around a folded or rolled newspaper and with an imprinted stamp to pay the cost of postage...

 with a stamp imprint.

Hybrid mail
Hybrid mail
Hybrid mail is mail that is delivered using a combination of electronic and physical delivery. Usually, it involves digital data being transformed into physical letter items at distributed print centres located as close as possible to the final delivery addresses...

, sometimes referred to as L-mail, is the electronic lodgement of mail from the mail generator’s computer directly to a Postal Service provider. The Postal Service provider is then able to use electronic means to have the mail piece sorted, routed and physically produced at a site closest to the delivery point. It is a type of mail growing in popularity with some Post Office operations and individual businesses venturing into this market. In some countries, these services are available to print and deliver emails to those unable to receive email, such as the elderly or infirm. Services provided by Hybrid mail providers are closely related to that of Mail forwarding
Mail forwarding
Post offices and other mail service providers typically offer a mail forwarding service, commonly known as hybrid mail or virtual post office box services, to redirect mail destined for one location to another – usually for a given period of time. In the case of the United States Postal Service's...

 service providers.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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