We have Exchange server 2007 environment, but we have multiple domain but having common GAL for using OCS which is located one domain.
Currently we are facing issue in one domain, when user is sending a mail to other domain it is resolving the id as per below,
#550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ##
Note: User is sending a mail from x.com to y.com domain but id is resoved as x.com as recipient having contact in x domain & user mailbox in y domain. ( both are in common GAL)