IT Employment

The setup : One NT4.0 server(Serv1), acting as a PDC. Added a Win2K Server(Serv2), installed AD, and made it PrimaryDC, which in turn demoted the NT PDC to a BDC, which is ok. Added one more Win2K server(Serv3), installed Exc2K and along with that-AD & appropriate service packs.
Configured the mailboxes on all the existing users(from the existing NT SAM), and all seems to work normal.

The problem :

1. Any new user created (with a mailbox), the MS-Outlook(At the Client-side) is unable toauthenticate the user!!! It continuously prompts for the username, the domain-name & the password(while opening the Outlook). Even after entering all these details, the user is not allowed to go ahead and see the mailbox!!

2. Any mail being sent to one of the user in my exchange, from a hotmail account, generates an NDR, a copy is sent to the sender. The mail is not delivered!! Although all the other users have no problems.

Kindly help!