Basic Steps of Email Transaction

  • A sender sends an e-mail to a recepient through a re-laying SMTP server.
  • The recepient gets the e-mail from the receiving SMTP server either through IMAP, POP3 or a shared file system.

  • Any combination of the Sender, Relaying SMTP, Receiving SMTP, and the Recepient can physically reside on the same or different computers.