Do you remember mailman? Yes, mailman is free software for managing electronic mail and e-newsletter lists. Mailmain is integrated with the web, making it easy for users to manage their accounts and for list owners to administor their lists. Although simple, this software is powerfull to manage mass messages, but if you lost you password admin mailman, what should you do?

Keep calm, mailmain was provide to handle that case. To reset a mailman admin password, the easiest way is to locate mailman’s proper bin directory (use dpkg -L mailman), generally:

There, you will find an executable script called change_pw. Use this one to solve your problem. If you want to change the password of all lists at once, use:

The complete reference visit: http://www.mail-archive.com/mailman-users@python.org/msg34242.html