I have a quick question about Distribution lists. Some back ground info W2K server, Exh2000 sp3, Exchange server is on DC. Is there limit to the amount of member you can have in a distribution list? Now the catch, the contacts for this distribution list are not part of our domain.. They are all (500 cutomers) external contacts? I tired creeating a DL and I would get an error cause I had too many names, I had to create nested DL's on the client Pc (outlook) inorder for this to work.. Thanks in Advance Rick Sambhi