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HTTP has borrowed much from the e-mail protocols. Which are the most important such concepts?

Reply:

  • HTTP uses similar header and body format as e-mail.
  • HTTP uses the same Media Types as mail.
  • HTTP is specified in ABFN like mail.

The following features are also similar to HTTP and e-mail, but existed before e-mail and can thus not be said to be borrowed from e-mail:

  • Three digit reply codes
  • Textual command encoding
  • Use of TCP as transport protocol

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