Error: The command you specified... (due to Mailbox.pst file being deleted).
Error:
The command you specified could not be carried out. A default set of folders could not be found. Your active profile must include such a set, such as a personal folder file.
Cause:
The default message store has been deleted. This file is usually called Mailbox.pst.
Solution:
Add a 'Personal Folder' via the 'Services' dialog box in the 'Inbox' 'Tools' menu.
1) Double-click the 'Inbox' icon from the desktop to start Microsoft Exchange.
2) Select 'Tools' and select 'Options...'.
3) Select the 'Services' tab.
4) Click 'Add...'. (The 'Add Service to Profile' dialog box appears.)
Add services
5) Select 'Personal Folders' from the 'Available information services' list box.
6) Click 'OK'. (The 'Create/Open' dialog box appears.)
7) Double-click the 'Exchange' folder (located off the root directory).
8) Select 'Mailbox.pst'.
NOTE: Although several .pst files may exist, select Mailbox.pst to create a default folder.
9) Click 'Open'. (The 'Personal Folders' dialog box appears.)
'Personal settings'
10) Click 'OK'.