I am setting up multiple email domains on an Exchange server 2003. Unfortunately Outlook 2003 is not easy to work with when you want to use multiple reply address. I was able to get the from field to show but the default address books only show the primary email addresses. So if you want to change your reply address you have to type it in yourself. My solution is to create a custom address book in Exchange to show only certain email addresses in the other domains. I tested this by creating a new custom address list on my own server and using the filter of Exchange Recipients, email address, is not, and then the domain I want to filter out. This worked great on my test system with two different domains but fails to work on my clients Exchange 2003 server. The server setups are almost exactly the same but they have 4 email domains. Whenever I run the same query I always get the back the default domain. I have tried playing around with queries and I always get back the default domain or nothing. I am no Filter or LDAP guru so I must be missing something. Any help would be appreciated.