IST 233 Lecture Notes - Lecture 7: Message Transfer Agent, Business Logic, Javascript

• School: Syracuse University
• Department: Information Studies
• Course: IST 233
• Professor: David Molta

Document Summary

E-mail standards: smtp: clients use smtp to send outgoing mail to mail server, sender and receiver mail servers exchange messages using smtp, sender"s mail server is acting as an smtp mail relay agent. E-mail access standards: pop and imap: pop (post office protocol) or imap (internet message access protocol) deliver incoming mail to clients. E-mail standards: messages & encoding: rfc 822/2822 defines plain text messages, html used for richly formatted messages, unicode used to represent text in any language, mime used for messages with attachments. The simple part of smtp: smtp servers use a step-by-step, request/response protocol, session setup, the sender sets up a tcp connection to a well-known smtp port (25 or. 465): the receiver accepts connection request and a tcp virtual circuit is established, the sender identifies itself, and the receiver responds, indicating willingness to proceed (or not).