E-mail Servers

Intro
An e-mail server is a computer within your network that works as your virtual post office. A mail server usually consists of a storage area where where e-mail is stored for local users, a set of user definable rules which determine how the mail server should react to the destination of a specific message, a database of user accounts that the mail server recognizes and will deal with locally, and communications modules which are the components that actually handle the transfer of messages to and from other mail servers and email clients.

Usages:
Useages could be both as an organisation or a business. A client would also use a email server to process their mail coming from different people.

Examples:
Microsoft Exchange server - usually found in organisations.