• Electronic mail commonly known asemailore-mail
  • In 1965, the Massachusetts Institute of Technology (MIT) was the first to demonstrate the use of the first email system, known as MAILBOX
  • The history of email addresses can also be attributed to Ray Tomlinson, He chose the '@' symbol to provide an addressing standard in the form of "user@host", which is in use till date.
  • This is why Tomlinson is called the 'father of email' and is credited with its invention

Email messages consist of two major sections:

  • Header — Structured into fields such as From, To, CC, BCC, Subject, Date, and other information about the email.

BCC - Blind Carbon Copy (remaining invisible to other recipients)

CC:- Carbon copy

  • Body — The basic content, as unstructured text; sometimes containing a signature block at the end.

E-mail address format

  • The general format of an email address is.
  • It consists of two parts: the part before the@sign is thelocal-partof the address, often theusernameof the recipient (), and the part after the @ sign is adomain nameto which the email message will be sent ().

SMTP ( Simple Mail Transfer Protocol)

  • Simple Mail Transfer ProtocolInternet standardforelectronic mail(e-mail) transmission acrossInternet Protocol(IP) networks.
  • SMTP was first defined byRFC 821
  • electronicmail serversand othermail transfer agentsuse SMTP to send and receive mail messages
  • For receiving messages, client applications usually use either thePost Office Protocol(POP)Internet Message Access Protocol(IMAP)

Webmail interfaces allow users to access their mail with any standardweb browser, from any computer, rather than relying on an email client.

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