2.7.1 Subscription rules

This subcategory controls the rules for exposing the existence of this list, and for what new members must do in order to subscribe to the list.

This option controls whether this list will show up in the list overview for the site. Normally, an overview contains the name and short description of every mailing list in the virtual domain. By setting this variable to No, it will not show up in this overview, nor will it show up in the administrative overview. The only way then to find the list is to guess (or know!) its name.

This option controls the steps that a new member must take to join the list. The available options may differ based on some defaults that the site administrator chooses. They are:

Specifies whether the list moderator's approval is required for unsubscription requests. No is highly recommended, since it is exceedingly impolite to not allow people to leave a mailing list whenever they want (i.e. opt-out). Yes is useful in some specialized contexts; e.g. you may not want to allow employees to unsubscribe from the company newsletter.

This contains a list of addresses (or regular expressions), one per line, that are banned from ever subscribing to your mailing list. If a match occurs during the subscription process, the request will be automatically rejected, and the requester will get a rejection notice. You can use this to permanently ban troublesome posters to a members-only list.

This specifies who is allowed to view the roster of member addresses. If you choose Anyone, then the list membership is completely public. You can limit exposure of the roster to just list members, or just to the list administrators. In the former case, a user must enter a valid member's address and password before they can view the roster. In the latter case, a list administrator's password must be entered; if a matching admin password is entered, address field is ignored.

Controls whether some simple obfuscation of addresses is used when member addresses are included on web pages. This should reduce the opportunity for email address harvesting by spammers, although it probably doesn't eliminate it.