This courselet explains Email in general terms. Focus is on understanding the background for being able to configure any Email client.
None. The course is for beginners.
This courselet is used in the Thunderbird course, for example. This is an example for re-use. Lots of small pieces - courselets for exmaple, which is what I call small course pieces - can be reused for many purposes. One could take this courselet and, for example, use it in a general course about the Internet or in a course about Email - or in a course for any Email software.