From the course: Networking Foundations: Protocols and CLI Tools

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Exchanging email with POP, IMAP, and SMTP

Exchanging email with POP, IMAP, and SMTP - Windows Server Tutorial

From the course: Networking Foundations: Protocols and CLI Tools

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Exchanging email with POP, IMAP, and SMTP

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- [Instructor] Email's an essential part of virtually every organization. Let's first discuss mail retrieval protocols, POP and IMAP, then cover mail transmission with SMTP. The Post Office Protocol is a legacy email retrieval system. The most current version is three, which is why it is most often referred to as POP3. A POP3 server listens on TCP port 110. An email client will connect to a POP3 server, download any new emails, store them on the client's PC, then delete them from the server. Most clients have the ability to leave a copy on the server, but this isn't the default behavior. POP3 does have a secure option whereby communication can be encrypted using TLS or SSL. POP3S runs on TCP port 995. There are several authentication methods supported by the POP3 extension mechanisms, such as SASL, a Kerberos version and APOP that uses MD5. Due to its advanced features and flexibility, the Internet Message Access Protocol…

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