How Email Works

This full color illustrated guide shows how electronic mail works.
We start with the basics of sending an email to a mail server, with SMTP and POP3 explained.
Mail Relays such as the Mail Submission Agent (MSA) and the Mail Transfer Agent (MTA) are described.
How Email Works shows how email is broken up, into data packets. Illustrates routers and network switches, moving email through the internet, to the recipients mail server.
The book shows simple encryption of emails to tackle hackers.
This book finishes with spam, and how internet service providers, use router configuration code to stop spam travelling to mail servers.
This full-color, fully illustrated guide to the world of email systems is ideal for computer science curriculums.