Removing Mailman Archives

The mailman web interface is so unfriendly and unable to do lots of works. For example you can't edit the email archives. This is a great reference to overcome this problem:
http://wiki.list.org/pages/viewpage.action?pageId=4030681
Please note that this command may not work for you:

  cd ~mailman

Instead, you should go to '/var/lib/mailman/bin' directory. Also note that, 'arch' is a utility offered by mailman not your Linux distro. So you must enter ./arch instead of arch alone.