![]() However, once the final restrictions on carrying commercial traffic over the Internet ended in 1995, a combination of factors made the current Internet suite of SMTP, POP3 and IMAP email protocols the standard (see Protocol Wars). For a time in the late 1980s and early 1990s, it seemed likely that either a proprietary commercial system or the X.400 email system, part of the Government Open Systems Interconnection Profile (GOSIP), would predominate. LAN email systems emerged in the mid 1980s. The Simple Mail Transfer Protocol (SMTP) protocol was implemented on the ARPANET in 1983. DEC's ALL-IN-1 and Hewlett-Packard's HPMAIL (later HP DeskManager) were released in 1982 development work on the former began in the late 1970s and the latter became the world’s largest selling email system. IBM, CompuServe and Xerox used in-house mail systems in the 1970s CompuServe sold a commercial intraoffice mail product in 1978 to IBM and to Xerox from 1981. Proprietary electronic mail systems soon began to emerge. Over a series of RFCs, conventions were refined for sending mail messages over the File Transfer Protocol. In 1971 the first ARPANET network mail was sent, introducing the now-familiar address syntax with the ' symbol designating the user's system address. Most developers of early mainframes and minicomputers developed similar, but generally incompatible, mail applications. HistoryĬomputer-based messaging between users of the same system became possible after the advent of time-sharing in the early 1960s, with a notable implementation by MIT's CTSS project in 1965. Īn Internet email consists of an envelope and content the content consists of a header and a body. ![]() The conventions for fields within emails-the "To," "From," "CC," "BCC" etc.-began with RFC-680 in 1975. The service is often simply referred to as mail, and a single piece of electronic mail is called a message.
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