.. include:: ../Includes.txt

.. _introduction:

Introduction
============

.. _about:

What does it do?
----------------

This extension implements a simple form to subscribe or unsubscribe to mailing lists or newsletters on external list servers.
This is achieved by sending a mail to the lists administrative adresses, i.e. list-subscribe@lists.example.com or list-unsubscribe@lists.example.com for the list 'list' at server lists.example.com. This method is common practice for many widely used list managers like `GNU/Mailman <http://list.org/>`_ or `ezmlm <http://cr.yp.to/ezmlm.html>`_.