Email system > Related Articles

From Citizendium, the Citizens' Compendium

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Parent topics

• Computer network [r]: A collection of computers or digital devices ("nodes") connected by communication links. [e]
• Internet [r]: International "network of networks" that connects computers together through the Internet Protocol Suite and supports applications like Email and the World Wide Web. [e]
• Email [r]: A method of composing, sending, storing, and receiving messages over electronic communication systems. [e]

Subtopics

• Email processes and protocols [r]: Brief explanation of an email system at the relay level. [e]
• Email agents [r]: Roles and responsibilities of organizations handling email. [e]
• Email security [r]: Brief description of email security problems and solutions. [e]
• Email authentication [r]: Brief overview of methods used to authenticate the sender of an email. [e]
• Email message headers [r]: The header lines in every email message, defined in RFC 5322 [e]
• Email port 587 [r]: TCP port reserved for authenticated submission of email messages. [e]

Core Protocols and Standards

• Simple Mail Transfer Protocol (SMTP) [r]: In the Internet Protocol Suite, SMTP is the basic method for transferring the "envelopes" of electronic mail among servers performing the electronic "post office" function, not the user mailbox function. [e] (RFC-5321)
• Extended SMTP (ESMTP) [r]: Extensions of the Simple Mail Transfer Protocol [e]
• SMTP example sessions [r]: Typical email sessions using the SMTP protocol. [e]
• Post Office Protocol (POP) [r]: POP is a client-server messaging protocol in the Internet Protocol Suite, which pulls messages from a mail storage server to the client machine. [e] (RFC-1939)
• Internet Message Access Protocol (IMAP) [r]: IMAP is a client-server messaging protocol in the Internet Protocol Suite, similar to Post Office Protocol but more versatile. [e] (RFC-3501)
• Email message formats [r]: The formats and encodings used for text, pictures, and various other objects in an email. [e] (RFC-5322)
• Multipurpose Internet Mail Extensions (MIME) [r]: MIME extends the format of Internet mail to allow non-US-ASCII textual messages, non-textual messages, multipart message bodies, and non-US-ASCII information in message headers. [e] (RFC-2045..2049)

Security protocols

• Sender Policy Framework (SPF) [r]: Email authentication method that verifies the domain name in the envelope return address against the sender's IP address. [e]
• Sender ID [r]: Email authentication method that verifies the domain name in a "purported" address with the sender's IP address. [e]
• DomainKeys Identified Mail (DKIM) [r]: Email authentication method that uses a digital signature to verify the content of a message. [e]
• Forward-confirmed reverse DNS (FCrDNS) [r]: Email authentication method that verifies a domain name found by a reverse DNS query on the transmitter's IP address. [e]

• Reverse MX (RMX) [r]: Email authentication method that became a basis of SPF and Sender ID. [e]
• Designated Mailers Protocol (DMP) [r]: Email authentication method that became a basis of SPF and Sender ID. [e]
• Certified Server Validation (CSV) [r]: Email authentication method that verifies the hostname of an SMTP transmitter against that transmitter's IP address. [e])

• Kerberos [r]: A network authentication protocol designed to provide strong authentication for client/server applications by using secret-key cryptography [e]
• Transport Layer Security (TLS) [r]: Add brief definition or description
• Pretty Good Privacy (PGP) [r]: E-mail encryption package created by Phillip Zimmerman. [e]

Other related topics

• Email user programs [r]: Email user programs and their features. [e]
• Webmail [r]: An e-mail service intended to be primarily accessed via a web browser, as opposed to through a desktop e-mail client. [e]
• Anti-spam techniques [r]: Techniques used to prevent e-mail spam, both to end users and administrators of e-mail systems. [e]

Supporting protocols and standards

• Transmission Control Protocol (TCP) [r]: A protocol that reliably delivers bytes across an internet. As long as the connection is up, bytes will be delivered without bit errors and in the order they were sent. It does not guarantee latency. [e]
• Domain Name System (DNS) [r]: The Internet service which translates to and from IP addresses and domain names. [e]

Culture and administration

• Email history [r]: History and development of electronic mail. [e]
• Email abuse [r]: The unsolicited sending of spam, third party advertisements, derogatory language, slander, and threats via electronic mail. [e]