The WebUser module presents a link to the Mailing Lists page on the Domain Login Page.
The Mailing Lists page displays all mailing lists created in the Domain that have the allow anybody to browse option enabled. Each name is a link that can be used to open a page listing messages in the Mailing List archive. Since Mailing Lists messages are archived in Mailboxes, the Mailing List WebUser interface is similar to the Mailbox Browsing interface.
The Mailing List WebUser Interface does not require any authentication, so no virtual session is created for list users, and each browser request is processed independently.