I have users that get removed automatically from distribution lists. They don’t get removed from all their distribution lists, just certain ones. If you look at their group membership, they are in the group, but they don’t get any email sent to the distribution list that is associated with the group. I’ve removed them from the group and then added them back in and everything is good for a few days and then they are not on the DL again. We are running Windows 2003 Server with AD.
