ezmlm is mailing list management software (MLM) by Daniel J. Bernstein.
It is similar to GNU Mailman and Majordomo but only works with the qmail mail transfer agent.
ezmlm takes advantage of the features of qmail to enable ordinary users to create and to manage mailing lists, without need for superuser privileges.
[2] Unlike some other mailing list management software, ezmlm's user interface is command-based.
[2] Standard ezmlm does not include a web interface, but the ezmlm-web extension provides that functionality.