I have a new Exchange environment. I have created a distribution list and then added several groups to this list. I have mail-enabled the distribution list and the groups. I have added all the user accounts to the domain and placed them in the groups. If send mail to the distribution list the mail does not go out to anyone. Some of these users have never logged on, but the users who have used their accounts do no get mail. If I create another distribution list and add users to another mail-enabled groups one at a time it works fine. But when I add back in all the other groups nothing works. What I am doing wrong. All I want to do is create a way to have all my users email everyone else by using all.users@xxxxxxxxxxx Thanks, Joe S.