Broadcasting to many recipients extends the capabilities of e-mail, allowing users to reach much larger audiences. However, as the reach of e-mail increases, the potential for abuse and misuse increases also.
List Types Lists utilizing the list server fall into one of four categories.
The choice of list type is dependent on the need of the requesting group. Generally, membership in voluntary lists is completely at the member's discretion. Involuntary lists contain members based on an existing IMSA relationship that necessitates membership. Moderated lists require approval for all messages from an administrator before they are forwarded to the entire membership. Unmoderated lists simply forward all messages to members automatically.