Why must this be something you have to work hard at?
I am looking for an email list program that will allow me to do the following:
1. allow users to send an email to firstname.lastname@example.org and have it broadcast to those on the list (like sourceforge lists), any registered user could send messages.
2. (optional) allow users to register via email by sending a message with the word "subscribe" to email@example.com and alternatively unsubscribe.
I have looked at web apps like google groups and sourceforge but I would like to use a custom address as shown above. if anyone knows how to modify or alias google groups or sourceforge that would be great.
I have also looked at other open source software like phplist which works only as a newsletter subscription app as well as poMMo.
I am interested in gnu mailman, but I do not have a server I can dedicate to the list (except a linux godaddy host).