If you’ve used Apple Mail or iPhone OS 4.0, you’re already familiar with the unified Inbox. By default, the Outlook folder list groups similar folders (Inbox, Drafts, Sent, Deleted Items ) from all your POP, IMAP and Microsoft Exchange accounts. This feature can make it easier to read all your messages. However, you can turn off this feature so that each account and all it’s folders are separated in the folder list. Unchecking reverts to the old Entourage view of the folder list.
Option one “Group similar folders, such as Inboxes,Drafts, Sent & Deleted Items from different accounts” gives you the unified view.
Option two “Hide On My Computer folders” is a new feature of Outlook, which many Exchange users have wanted for a long time: the ability to hide “On My Computer”.
By default, if the first and only account you create in Outlook is an Exchange account then this new feature is enabled. You can disable it by going to Outlook menu –> Preferences… –> Personal Settings –> General and deselecting the option “Hide On My Computer folders”.
I can also toggle open to view each account individually.
Do you notice the triangle for “On My Computer”? If you have sub-folders under the Inbox, they will show up here. However, if you have sub-folders under”On My Computer” they will show below.
This shows sub-folders under the Inbox and one sub-folder under “ON MY COMPUTER”
This shows what you would see in unified view with group folders selected:
Refresh Folder List for IMAP account
I also found that if I added folders to a Gmail IMAP account in my browser that I had to uncheck this option so that I could refresh folder list to show the new folder in Outlook.
Option to refresh not available in unified view:
Uncheck “Group similar folders, such as Inboxes, from different accounts” in General Preferences. Select“Refresh Folder List”. After your folders have downloaded, you can toggle the preference and return to the unified view.