I have many distribution lists under a global address book. Two lists have the aliases BLUE and RED. How would I embed RED list into the BLUE list so when you look under the global address book, you still see the BLUE list and the RED list liststed separately but when you go into the BLUE list, not only do you see the individual email addresses but you also see the RED list in bold. Also, how do I edit the original RED list and have those changes automatically appear in the RED list that's embedded in the BLUE list? Thanks for your help.

Just add the group as a member of the other group. The address book has nothing to do with it, it is all connected to AD. The group will appear, you will not see the users unless you expand the group. It isn't possible to have the members appear in the list with everyone else (if that makes sense). Simon.Simon Butler, Exchange MVP. http://blog.sembee.co.uk , http://exbpa.com/