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How Email Works

Tue May 19 16:46:46 1981
RFC 780 now available

new RFC is now available in the NIC online library at SRI-KL.

RFC 780:
Mail Transfer Protocol
      Author: S. Sluizer
and J. Postel
the new Mail Transfer Protocol (MTP) to be
for Internet Text Mail. Designed to be used with
TCP and NCP…


Email servers exchange messages
over the Internet using the SMTP protocol. Client
applications log into the servers to send and receive email using one of several
protocols, including POP3, IMAP, and MAPI. The following sections provide more information:

Resources. Other sources of email design information:

  • Internet
    Mail Consortium
    , an industry organization of email product vendors that provides
    information on email standards, interoperability, and internationalization.
  • RFC 2076, Common
    Internet Message Header Fields
    , describes a range of Internet headers including email headers.