LDAP Echange 5.5 Query from different domains problem   

Hi All,

I'm pulling my hair out with this one, so any help would be gratefully 
appreciated!. I have an ASP.NET 2.0 application written in C# that uses LDAP 
to connect to an Exchange 5.5 server and retrieve user details. This works 
fine for most users, however, users on certain domains within the 
organisation never get found?

I have the following LDAP query:

LDAP://EXCHCAR001

To this i add the following filter:

(&(uid=" + Login + "))"

Where Login is the NT account of the currently logged on user. This is 
working fine for most users, but, on some domains, nothing gets returned. Our 
Exchange boys have told us that all users on all domains are within this 
servers Global Address List?

Please help, this is urgent as the application is due to go live shortly! I 
would appreciate a text/call to 07976 763741(UK), or an email to 
andrewsumner@hbosplc.com if at all possible.

Thanks in advance.

Andy

date: Tue, 9 May 2006 01:05:02 -0700   author:   galico