Outlook 2010 error 0x8004010f while trying to download the Offline Address Book (OAB)

exchange server outlook 2010 download oab

  1. Go to your Exchange Server 2010.
  2.  Start the Exchange Management Console
  3. Navigate to Microsoft Exchange > Microsoft Exchange On-Premises > Organization Configuration > Mailbox
  4. Select the Database Management tab page
  5. Right-mouse click a mailbox database, go to Properties
  6. In the Mailbox Database Properties go to the tab page Client Settings
  7. If the Offline address book is empty, click the [Browse…] button and select your OAB.
  8. Repeat step 5 – 7 for EACH mailbox database

When this is done, restart your Outlook 2010 application on the client.
You should now be able to download the OAB again via File > Account Settings > Download Address Book…

Have fun!
If this didn’t work for you, please comment how you fixed it.