Hi There, We have Windows 2003 R2 with Exchange Standard 2003 SP2 installed and have some distictive groups of users within our organisation, each group uses a different domain name to send/recieve email. I have setup the users within seperate OU's, each OU has a Universal Security Group which the users within that OU belong to, which intern has a exchange Recipient Policy to set the primary domain for each OU. This is working well and all users can recieve and send via there primary email address. I now have a need to somehow have a seperate GAL for each OU... Is this possible and if so can you point me in the correct direction or give me a starting point please? Thanks!! Simon