E-mail is the sending of message electronically on computer using internet. It is similar to writing a traditional letter on paper. Email consists of 3 vital components-envelope, header and body of the message. The envelope is something that an email user will never see since it is part of the internal process by which an email is routed Traditional postal offices facilitate letter transfer. Similarly, mail transfer agents (MTA) facilitate email transfers. Header consists of information like To, from, Date, subject. Body of email comprises of the actual message to be sent.
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