Can anyone tell me how to (or if it's possible to) send as a distribution list in Exchange 2003. I'd configured this for my users in Exchange 2000. In Exchange 2000 I just right-clicked the group in AD Users and Computers then selected properties and there was a security tab. In there I just checked the `send as' box and assigned the right to the users I wished. However in Exchange 2003 there is no security tab, is there another way to do this ? Many thanks in advance.