From the course: Cert Prep LPIC-1 Exam 102 (Version 5.0)
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About email - Linux Tutorial
From the course: Cert Prep LPIC-1 Exam 102 (Version 5.0)
About email
- Email was the killer application that drove the creation of the internet as we know it. It's still the most popular application on the internet, although now we have many other ways of communicating. Electronic mail works in a similar way to snail mail, in that we send letters or messages from one person to another which are delivered by multiple carriers between the two. Let's cover some terms associated with email systems. With email, the protocol that sends from one email server to another is SMTP, or Simple Mail Transfer Protocol. The SMTP Protocol runs on IP for host addressing and uses port number 25. Just as a traditional letter has a sender and destination address, an email has a sender's ID and a domain, along with a destination email address. It also carries a subject line and the message itself. The email system compromises of a mail user agent or MUA, which is the program that sends the mail from the user's…
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