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Electronic mail (email or e-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 (hence e- + mail).
A mailbox name is the first part of an email address, also known as local-part; that is, the part before the @ symbol. Its format is formally specified by RFC 5322 and RFC 5321. It is often the username of the recipient on the mail server or in the destination domain. The local-part may be up to 64 characters long and, in theory, is case-sensitive.
Some mail services support a tag included in the local-part, such that the address is an alias to a prefix of the local-part. Typically the characters following a plus and less often the characters following a minus, so fred+bah@domain and fred+foo@domain might end up in the same inbox as fred+@domain or even as fred@domain.
The history of email entails an evolving set of technologies and standards that culminated in the email systems in use today. [ 1 ] Computer-based messaging between users of the same system became possible following the advent of time-sharing in the early 1960s, with a notable implementation by MIT 's CTSS project in 1965.
Gmail. Gmail is the email service provided by Google. As of 2019, it had 1.5 billion active users worldwide, making it the largest email service in the world. [1] It also provides a webmail interface, accessible through a web browser, and is also accessible through the official mobile application. Google also supports the use of third-party ...
As of October 1997, AOL Mail was the world's largest e-mail provider, with around 9 million subscribers [10] (identical with the number of AOL subscribers). [11] In 1997, AOL launched NetMail, a web-based version of its e-mail service. It was initially criticized for only working on Internet Explorer, but a later Java -written version ensured ...
The Internet Message Access Protocol is an application layer Internet protocol that allows an e-mail client to access email on a remote mail server. The current version is defined by RFC 9051. An IMAP server typically listens on well-known port 143, while IMAP over SSL/TLS (IMAPS) uses 993. [2][3]
An folder filled with spam messages. Email spam, also referred to as junk email, spam mail, or simply spam, is unsolicited messages sent in bulk by email (spamming). The name comes from a Monty Python sketch in which the name of the canned pork product Spam is ubiquitous, unavoidable, and repetitive. [1] Email spam has steadily grown since the ...