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Webpages use HTTP, email uses SMTP for sending and POP3/IMAP/Exchange for remote retrieval/manipulation of a store of messages. All these are different. HTTP is a request-response protocol, meaning the client issues a single request, and the server provides a response, and that's it. It is by design stateless, meaning there is no notion of a session - ...


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Yes, email, smtp is port 25 or 465,587 with encryption. Web port 80, or 443 encrypted. However, each one has its own language. For example a web server mainly uses the GET,POST, and PUT commands for 99% of traffic and has approx 12 total commands. An email server also has a very limited vocabulary of email specific commands. See ...



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