Moderators must approve any message posted to an email list before it is delivered to all subscribers. It is also possible for the moderator to edit or delete messages. A moderated list thus puts the list owner in the equivalent position as an editor of a newspaper.
Building Your Business with an Opt-in List
Before revealing the secrets of the trades, here are myths and fallacies that need to be cleared before one indulges into building an opt-in list.