We have an Exchange 2003 SP2 organization. We have an issue with a distribution list that has nested distribution lists. We set only certain users to be able to send to all of these DL's. (some VIP"s). The issue is that they are being removed from certain DL's and not others. Is there any other process in Exchange that could cause this removal besides human intervention or being a member of a protected group in AD. (not sure if that would impact this setting). I have also checked the DL's that were responding with the NDR's
"You do not have permission to send to this recipient. For assistance, contact your system administrator.
The setting I am specifically talking about is the DL's Exchange General tab. We have it set to
From Authenticated users only - checked
Only From: checked
Users are added to the box