Everyone interacts with ListServer by e-mail. The ListServer Program understands a very limited set of requests and expects a fixed syntax for each one of those. List owners have special privileges on the lists they manage. Each mailing list has at leat one primary owner and may have many co-owners. For example, an owner may want to be notified when someone subscribes to his list, or when someone signs off.
Owners access their lists with a password.
All owner requests require that password. In addition, the e-mail address of the owner is verified for such requests. A copy of the report files on list activity are sent to the owner. Each list is controlled through some system files. Each mailing list may have its messages automatically archived.