mail-to-news is not part of the GNU Project.
It is a mail-to-news gateway meant to be easy to install and configure and to have a little as possible impact on the system.
Currently it is not usable. You should not use it if not for testing purposes.
UPDATE: The mail-to-news project was aborted for lack of interest. If you have interest in this project, please contact me to apply for adopting it.
You can get mail-to-news only from CVS.
See the development area for more informations about how to get it.