When trying to use the pfdavadmin tool I connect ok and it lists all mailboxes, but when I try to expand I get the 401: unauthorised error message.The account used is in domain admins, exchange org admins and also has been given full mailbox access.Really begining to annoy me, any help very much appreciated.Thanks in advance.Steve

Check this Recent Thread and make sure you match the preqs mentioned in the thread http://social.technet.microsoft.com/Forums/en-US/exchangesvradmin/thread/18983e7d-bfac-474e-a845-b8017ae93613/ Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|