[Mailman-Users] Is it possible

[Gold-In-Email]

Hi there,   I am setting up a website for someone else and their host offers Mailman as a list manager.   Is there a way for me to set it up so that subscriptions can be added via the site itself?  For example... Someone signs up to the program and the site itself sends an email to the list that will subscribe them..  In reverse.. If she were to delete a member from her membership list, the system sends and email to the list that will unsubscribe them.   Is any of this possible?    Glen McDonald AMCS Web Services.