If Use Password is turned on, a person attempting to post to the list will be required to enter a password. If Enable Posters List is also turned on, then users in the posters list will also be required to enter a password.
The password must be entered in the "Subject" field of the message and must be enclosed in brackets and colons as such [:password:].
If Use Password is turned on for an open list, then all posters will be required to enter a password in order to post to the list.
If Use Password is turned on for a subscriber list, the subscribers will be required to enter a password in order to post to the list.
If Use Password is turned on for a moderated list, the moderator is required to enter a password in order to post to the list.