(Task reported error (0x8004010F): ‘The operation failed. An object cannot be found.’)
 
Solution : 
To resolve this issue, follow these steps: 
    
- Start Internet Explorer, click Tools, and
    then click Internet Options.
- On the Connections tab, click LAN
    settings.
- elect the Bypass proxy server for local
    addresses check box, and then click Advanced.
    
- Type
    the FQDN (Fully Qualified Domain Name)of the Exchange 2007 CAS server, and then click OK.
- Restart Outlook.
OR
     1.Remove and configure again your exchange client user ID this will solve your problem.
hope this helps you.