Okay, here's the situation.
We are using Exchange 2003 with Active Directory.
A new user account (User1) was created and mailbox-enabled. The User1 is also disabled because it's not an actual person, the mailbox is going to be monitored by another person (User2). The User1 account is just their so we can have this extra mailbox. So I added User2 in the Mailbox Rights dialog box and gave her Full Mailbox Access.
So User2 now has the User1 mailbox added to her folder list in Outlook 2000. But when she tries to open it, she gets the error:
Unable to expand the folder. The set of folders could not be opened. The information store could not be opened.
So what gives? We have other mailbox-enabled user accounts (that are also disabled) and other people can access them fine.
Does User1 have to log into the domain, onto the PC, and open their mailbox at least once before User2 can view the mailbox?