title: Invalid Domain error in Email Settings API
body: <p>I tried to create labels in my personal Gmail Account using <strong>Email Settings API</strong>. </p>
  
  <p>I have sent http post reqeust to the below URL</p>
  
  <p><a href="https://apps-apis.google.com/a/feeds/emailsettings/2.0/gmail.com/username/label" rel="nofollow">https://apps-apis.google.com/a/feeds/emailsettings/2.0/gmail.com/username/label</a></p>
  
  <p>but am getting <strong>invalid domain (403)</strong> error.</p>
  
  <p>is it possible to change the settings for personal Gmail account using Email Settings API?</p>
  
  <p>if yes means what should I do? </p>
  
  <p>Is there any other way to create new Label in Gmail personal account?</p>
  
  <p>pls help on this..</p>