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An email address consists of two parts, a local-part (sometimes a user name, but not always) and a domain; if the domain is a domain name rather than an IP address then the SMTP client uses the domain name to look up the mail exchange IP address.
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.
In 1993, both America Online (AOL) and Delphi started connecting their proprietary e-mail services to the Internet. As of October 1997, AOL Mail was the world's largest e-mail provider, with around 9 million subscribers (identical with the number of AOL subscribers). In 1997, AOL launched NetMail, a web-based version of its e-mail service.
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 email ...
History of email. 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.
Email spoofing is the creation of email messages with a forged sender address. [1] The term applies to email purporting to be from an address which is not actually the sender's; mail sent in reply to that address may bounce or be delivered to an unrelated party whose identity has been faked. Disposable email address or "masked" email is a ...
Email forwarding. 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. The term forwarding, used for mail since long before electronic communications, has no specific technical meaning, [1] but it implies that the email has been moved ...
Email authentication is a necessary first step towards identifying the origin of messages, and thereby making policies and laws more enforceable. Hinging on domain ownership is a stance that emerged in the early 2000. It implies a coarse-grained authentication, given that domains appear on the right part of email addresses, after the at sign.