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= Email Servers =
You may not be aware of it as an user, but email is a very <u>complex</u> system to administer. In fact, the more modern e-mail systems (eg. web-based mail applications, etc) are more technically involved than the other archaic, hard-to-configure, and sometimes inter-operable mail systems.
We're going to spend three weeks working on it so that by the end of the course you will have a general understanding of what services are involved in sending, filtering, and reading email. You will also have the skills to configure a basic setup using the default services on CentOS 7.