What is the difference between an alias and a mailing list?
In many ways, a mailing list is just a fancy version of an alias. Conceptually, an alias is an email address that represents one or more other email addresses, which are stored in a list called an alias list. The addresses on the alias list can change while the alias remains the same. When an email is sent to the alias, it is forwarded to all the addresses on the alias list. A mailing list works the same way, with a single email address forwarding messages sent to it to a list of subscriber email addresses. But mailing lists have additional capabilities: they can apply rules to incoming messages and route them to different addresses based on these rules, and they may offer features such as digests or archives. Most of the rules applied to mailing lists are used to control access to the list and its archives. For more information, see Introduction to Mailing Lists and Aliases.