Electronic mail is a method of transmitting and receiving messages using electronic devices. It was conceived in the late–20th century as the digital version of, or counterpart to, mail. Email is a ubiquitous and very widely used communication medium; in current use, an email address is often treated as a basic and necessary part of many processes in business, commerce, government, education, entertainment, and other spheres of daily life in most countries.
A letter is a written message conveyed from one person to another through a medium. Something epistolary means that it is a form of letter writing. The term usually excludes written material intended to be read in its original form by large numbers of people, such as newspapers and placards, although even these may include material in the form of an "open letter". The typical form of a letter for many centuries, and the archetypal concept even today, is a sheet of paper that is sent to a correspondent through a postal system. A letter can be formal or informal, depending on its audience and purpose. Besides being a means of communication and a store of information, letter writing has played a role in the reproduction of writing as an art throughout history. Letters have been sent since antiquity and are mentioned in the Iliad. Historians Herodotus and Thucydides mention and use letters in their writings.
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 systems have generally been established as a government monopoly, with a fee on the article prepaid. Proof of payment is usually in the form of an adhesive postage stamp, but a postage meter is also used for bulk mailing.
Postal codes used in the United Kingdom, British Overseas Territories and Crown dependencies are known as postcodes. They are alphanumeric and were adopted nationally between 11 October 1959 and 1974, having been devised by the General Post Office . The system uses alphanumeric codes to designate geographic areas. A full postcode, also known as a "postcode unit", identifies a group of addresses or a major delivery point. It consists of an outward code and inward code. The outward code indicates the area and district, while the inward code specifies the sector and delivery point, typically encompassing about 15 addresses.
A postal marking is any kind of annotation applied to a letter by a postal service. The most common types are postmarks and cancellations; almost every letter will have those. Less common types include forwarding addresses, routing annotations, warnings, postage due notices and explanations, such as for damaged or delayed mail, and censored or inspected mail. A key part of postal history is the identification of postal markings, their purpose, and period of use.
Registered mail is a postal service in many countries which allows the sender proof of mailing via a receipt and, upon request, electronic verification that an article was delivered or that a delivery attempt was made. Depending on the country, additional services may also be available, such as:
The British Forces Post Office (BFPO) provides a postal service to HM Forces separate from that provided by Royal Mail in the United Kingdom. BFPO addresses are used for the delivery of mail in the UK and around the world. BFPO moved from its original base at Inglis Barracks, Mill Hill to its current base at RAF Northolt in west London in 2007.
A post office box is a uniquely addressable lockable box located on the premises of a post office.
Email marketing is the act of sending a commercial message, typically to a group of people, using email. In its broadest sense, every email sent to a potential or current customer could be considered email marketing. It involves using email to send advertisements, request business, or solicit sales or donations. Email marketing strategies commonly seek to achieve one or more of three primary objectives: build loyalty, trust, or brand awareness. The term usually refers to sending email messages with the purpose of enhancing a merchant's relationship with current or previous customers, encouraging customer loyalty and repeat business, acquiring new customers or convincing current customers to purchase something immediately, and sharing third-party ads.
Push email is an email system that provides an always-on capability, in which when new email arrives at the mail delivery agent (MDA), it is immediately, actively transferred (pushed) by the MDA to the mail user agent (MUA), also called the email client, so that the end-user can see incoming email immediately. This is in contrast with systems that check for new incoming mail every so often, on a schedule. Email clients include smartphones and, less strictly, IMAP personal computer mail applications.
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 addressed to one location to another address – usually for a given period. In the case of the United States Postal Service's First Class Mail, it is generally for a period of one year. British Royal Mail provides a service called Mail Redirection, enabling redirection for up to two years. Customers of such a service usually, but not exclusively, use mail forwarding when they change an address.
Electronic billing or electronic bill payment and presentment, is when a seller such as company, organization, or group sends its bills or invoices over the internet, and customers pay the bills electronically. This replaces the traditional method where invoices are sent in paper form and payments are done by manual means such as sending cheques.
Email forwarding generically refers to the operation of re-sending a previously delivered email to an email address to one or more different email addresses.
A mailbox is the destination to which electronic mail messages are delivered. It is the equivalent of a letter box in the postal system.
CDS Global, Inc. is a multinational corporation based in Des Moines, Iowa, that provides business process outsourcing and customer data management to various industries worldwide.
MCI Mail was one of the first commercial email services in the United States and one of the largest telecommunication services in the world. Operated by MCI Communications Corp. from 1983 to 2003, MCI Mail offered its customers a low cost and effective solution for sending and receiving electronic mail.
Mail sorting refers to the methods by which postal systems determine how and where to route mail for delivery. Once accomplished by hand, mail sorting is now largely automated through the aid of specialized machines. The first widely adopted mail sorting machine was the Transorma, first made operational in Rotterdam in 1930.
An online post office is a commercial mail receiving agency that implements the concept of hybrid mail, enabling conventional mail to become electronic, or electronic correspondence to be printed and mailed at a remote location. As paper correspondence becomes inconvenient for businesses that are evolving to maintain a paperless office, services have emerged to outsource the task of scanning snail mail as it arrives. Some online post offices will scan envelopes for subscribing customers, and offer handling options. Some providers will systematically scan and make the contents immediately available.
E-COM, short for Electronic Computer Originated Mail, was a hybrid mail process used from 1982 to 1985 by the U.S. Postal Service (USPS) to print electronically originated mail, and deliver it in envelopes to customers within two days of transmission.
A virtual mailbox is a service that receives physical mail on behalf of the addressee and usually scans the outside of the mail. Some providers also scan the inside contents of the mail as well. These scans may be photos, PDFs, or text-searchable PDFs. Reasons for using virtual mailboxes may include accepting mail from couriers, accessing mail while traveling, and keeping a home address private.