I have two DCs Win2003 one is Root (DC+GC),second is additional DC with Exchange 2003 it was working fine for few days ,after that i install Hotfix :KB 831464 . Later i try to create new user accounts and their related mailboxes it created and can see them from ESM, but when i try to send messages to these users from Outlook i didn't find them in the Global Address List.If i put the mail box account in the send to: (user@domain) it works fine.Previous created accounts are listed in Global Address List. One of the users told me that his contacts was lost (he is the only user create contacts )and the servers become out off power when power gone from the building . No logs in System or Application logs regarding to Exchange services. is their is any Way to fix this problem? __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com