Lecture 4/17/2008

Email Basics
Outline:

  • Basic Steps of Email Transaction

  • Composing and Sending Email

  • Email Envelope and Headers

  • Popular Unix SMTP servers

  • IMAP and POP servers

  • Example of POP3 session

  • Example of IMAP session

  • SMTP and DNS

  • Basic Postfix Settings

  • Open Relay

  • Relaying e-mail to the outside of NAT

  • Steps to Protect Email Server on the Internet

  • Practical Exercises

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