When I compose a mail in Outlook 2007 on any PC and select to, the gal displays. User 1 is listed here. If I select the all users group, and then expand this group, User 1 is missing. In the exchange2007 management console, if I select organisation config > mailbox > all users > edit > preview. User 1 is visible.
How can I make user1 visible in Outlook send to all users list?