I have a setup with a resource forest for exchange with linked mailboxes to user objects in other trusted forests. We're trying to integrate an MDM solution that needs LDAP/GC integration. I have it successfully binding to exchangeforest.com via GC/SSL (port 3269) but I can't look up users in the trusted forests (users1.corp, users2.corp, etc). We're trying to find the right query (via LDP.exe) so that we can add the users from users1.corp so that authentication will work. I'm not sure if I need to setup an ADSI instance or modify my queries. We're trying to look users up by UPN, but any search parameter will work.
Thanks,