Email. It's become one of the most important personal and business communication tools. When my customers email stops working, for whatever reason, they very quickly move from concern, to worry, to distress, to panic. As with most computer problems, a lack of knowledge about the system only increases the intensity of the panic - not only are they unable to access their email, they have no idea how it works. Hopefully after reading this article, you'll have a better understanding of the multitude of systems that have to coordinate for your email to make it to you.