title: Email sent via sendgrid is not being delivered
body: <p>I have choose sendgrid to sent email to my mail accounts. I used the php curl to do so.</p>
  
  <p>When i run the curl scrip sending the mail to sendgrid server</p>
  
  <pre><code>$url = 'https://api.sendgrid.com/';
  </code></pre>
  
  <p>I got <code>{"message":"success"}</code> json response</p>
  
  <p>But the message is not being delivered to my mail account (say google)</p>