Fix the error “Outlook data file cannot be accessed error (0x8004010F)"

You may be wondering what this error is supposed to mean "Sending reported error (0x8004010F) : Outlook data file cannot be accessed." Simple, Outlook is unable to access you PST file, so cannot download emails from the server. To fix this you don't need to delete your existing profile or create new Outlook profile. Recreating a Outlook profile is not a simple task if you have multiple email accounts. Here is a simple solution to fix this complicated issue.