Okay, I have tried using ADModify to make the following edit on DL's but the option is not available with ADModify. On all DL's in my organization (and there are quite a few) I need to restrict one specific address from being able to send to them. Is there a tool that I can use to edit all DL's to 'accept messages from anyone EXCEPT' one person? Thanks, Chris Wall - MCSE + Messaging, MCSA NAM Exchange Administrator Chris.Wall@xxxxxxxxxxxxxxxxxxx T (919) 460-3236 F (919) 468-4889 Global Knowledge LEARNING. To Make a Difference. http://www.globalknowledge.com <BLOCKED::http://www.globalknowledge.com/>