hi, mods, could you please delete my other thread on the subject? (https://www.howtoforge.com/community/threads/mailman-list-cleanup.71901/) i removed all mailing lists by simply issuing Code: apt-get remove mailman && apt-get purge mailman and deleted all the directories mailman was using. after that i reinstalled mailman. but now i've got another problem. something is wrong with my address mapping. when i create a new list, mailman correctly sends a mail to the owner's email address. i can then log into the admin interface and configure the list. however, i can't send anything to the list's address (email@example.com), it bounces with Code: Recipient address rejected: User unknown in virtual mailbox table i found out that i can make it work by creating a new mailbox "firstname.lastname@example.org" via ispconfig. this mailbox doesn't receive mails, but instead mailman does. somehow my mapping of the list name to an email address is not working properly. i'm confused. could anyone please help me out?