Permissions

Access control

With user permissions you'll be able to choose the subscription method (Mailman Manager email and/or User Mailman Register http) for a user of your site, and, in any moment, to switch between the two methods preserving his subscription status.
For example, if you want to deny the Mailman Manager method and use only the User Mailman Register method you have simply to uncheck the "access mailman manager" permission of the Mailman Manager module.

The general "access user_mailman_register" permission controls who can subscribe and manage his own subscriptions for allowed lists by accessing the subscription form.
This permission controls also if the "anonymous user" is allowed to subscribe authorized lists (or to be invited to join them when the "Only invite users" list option is on). In this case, the subscription form will require a valid email address.

The "can subscribe to" permission controls what lists are allowed to be displayed and subscribed by a user.
When the "Visible in user registration form" setting is on, apply this permission to the "anonymous user" to control what lists to display in the new user registration form.
Note: When a subscribed user loses this permission because of role changing, his list subscription is also automatically deleted, just to reflect the new state.

Drupal administrator and users with "administer mailman_manager" permission can access and manage whole site subscriptions.