0x8004010F Error - Resolving Exchange Server Error 0x8004010F An object could not be found

A business enterprise decided to install a new Exchange Server. Default 'Address List' of the already installed Exchange Server used the server as Address List Server. But now, after installation of new server, the organization is facing a problem that the Outlook OST files, configured for running in Cached mode, are not able to download the address book. If a user tries to synchronize the offline address list on a MS Exchange Server 2003/2007/2010/2013 server in MS Office Outlook 2003/2007/2010/2013 by help of address book, an exchange server error message"Task 'Microsoft Exchange Server' reported error (0x800f010F): 'The operation failed.  An object could not be found." is shown. After the synchronization fails, if a client tries to send an e-mail the same error message may again get displayed.

The main reason for the Exchange Error 0x8004010F error, can be that the address list is missing, or is incorrect. This information can be seen in the Address Lists or Offline Address List properties settings in Exchange System manager.

Solving the Issue

To resolve the 0x8004010F error, you can use the underlying solutions according to the case.

Address List is missing in Address List Properties - Exchange Server 2007/2010/2013

1. Run Exchange Server.
   
2. Click Start and then click Server Management.
   
3. In the Server Management navigation pane, expand Server Configuration.
   
4. Click Mailbox.
   
5. In the results pane, under the Database Management tab, click Properties.
   
6. In the Database Management window, right-click Properties on the mailbox store.
   
7. Under the Client Settings tab, click Browse. Select the required offline address book.
   
8. Click OK.
   
9. Click OK
   

Address List is missing in Address List Properties - Exchange Server 2003

1. Run Exchange Server.
   
2. Click Start and then click Server Management.
   
3. In the Server Management navigation pane, expand Recipients container.
   
4. Click the Offline Address Lists container.
   
5. Right-click the offline address list object and then click Properties option.
   
6. Under the General tab, under Address Lists verify that the address list is existing an existing one. If the address list is not valid, add it. The default address list will be used as global.
   
7. Click OK.
   
8. Right-click the offline address list object. Select Set as New Default option.
   
9. You can click offline address list object and then click Rebuild button to refresh the list.
   

Address List is missing in Offline Address List Properties - Exchange Server 2003

1. Run Exchange Server.
   
2. Click Start and then click Server Management.
   
3. In the Server Management navigation pane, expand Recipients container.
   
4. Click the Offline Address Lists container.
   
5. Right-click the offline address list object and then click Properties option.
   
6. Verify if the offline address list is valid or not. If the offline address list is not valid, click Browse and select a valid offline address list.
   
7. Log off and logon on the Exchange Server.
   

If the above solution does not solve your problem, you can try Exchange Server Recovery software. Click here to download it.