I have created a distro list, distro1@domain.com and added two users user1@domain.com and user2@domain.com and tested all works fine. Then I deleted user1@domain.com because they left and when I send mail to distro1@domain.com I get a bounce message stating user1@domain.com does not exist. I check the distro list and infact user1@domain.com is still there. I will have quite a few different lists and maintence is going to be a chore if the lists dont "self clean". Am I missing something?