title: How to use GMail as a free SMTP server and overcome captcha
body: <p>GMail can used as a SMTP server. I've written the code that does it. But as we all know GMail may occasionally authenticate using captcha (<em>image verification</em> as they call it). The same thing may be the cause to reject SMTP authentication.</p>
  
  <p>As I've seen google shows image verification when you try to log-in for the first time from some machine. All consecutive log-ins from the same machine (to the same account) use regular login. I'm a bit afraid this captcha may also come up again for some other reasons that I can't control.</p>
  
  <p>So. <strong>Is it possible to still authenticate when special measures are needed? And how?</strong></p>
  
  <p>I should also mention that logging in from the machine via web browser also enables programmatic SMTP authentication.</p>