title: Do you need to delete imported files from Documents/Inbox?
body: <p>I've got an iOS app that imported files from an email attachment.
  I've noticed that once i'm finished with it it places the imported file into Documents/Inbox.</p>
  
  <p>Should my app be deleting these files or does the OS eventually get around to clearing them out?</p>
  
  <p>if so, how? i've tried:</p>
  
  <pre><code>[[NSFileManager defaultManager] removeItemAtPath:[self.url path] error:nil];
  </code></pre>
  
  <p>However it doesn't seem to reference the file in the inbox, even though self.url is the correct path to my import file.</p>