title: is there a way to get ip address of email sender using Gmail API
body: <p>I'm making an app Using Gmail API. </p>
  
  <p>I want to get ip address of email sender. I've done some research on it. What I'm able to get till now is following.</p>
  
  <p>Each message has headers with information something like below :</p>
  
  <pre><code>{
  "name": "Received",
  "value": "by 10.28.188.5 with SMTP id m5csp628249wmf;        Sat, 17 Oct 2015 21:01:22 -0700 (PDT)"
  },
  {
  "name": "X-Received",
  "value": "by 10.182.28.74 with SMTP id z10mr15179312obg.80.1445140882358;        Sat, 17 Oct 2015 21:01:22 -0700 (PDT)"
  },
  </code></pre>
  
  <p>Can anyone tell me which one is sender's ip address? </p>
  
  <p>Also will it be accurate to get location from that ip address?</p>