title: SMTP: Emails sent with delay (~8 hours)
body: <p>I have the impression (still investigating on it) that the emails my webapp automatically sends are <strong>highly delayed</strong> (something like 8 hours late). </p>
  
  <ul>
  <li>Could this be my SMTP server that is overloaded?</li>
  <li>Could this be related to SPAM filtering?</li>
  <li>Is this why apps such as <a href="http://mandrill.com/" rel="nofollow">Mandrill</a> exit?</li>
  </ul>
  
  <p>I have been searching in those directions, without success.</p>
  
  <p>I am using 1&amp;1 as a domain name provider.</p>