Dear guys, I'm using ex2k sp4, and I created users in aduc, and all is ok. Today I need to create a new user, so I create it. Then I try to setup ms outlook to test the account. When entering servername and username, then check the username, I got this error : "the name could not be matched to a name in the address list" and the setup can't continue. Then I try to login using that account to domain (ad) and it works. Only can't access the mailbox. why I got this error and anyone have any idea how to solve this problem ? thanks, hery