When downloading the OAB from Outlook you recieve not found 0x8004010f. Although there are many issues that can cause this error mentioned in article below

Outlook clients receive error 0x8004010f when downloading the Offline Book Addresshttp://msexchangeteam.com/archive/2007/04/19/437902.aspx

Ensure that the DB has been configured to use the OAB.

Open EMC, Org Config, Mailbox, Database Management Tab.

Right click properties of each Database, Client Settings Tab. Offline Address Book, Browse and select your \Default Offline Address Book.