title: Any way to detect SMS to E-Mail Gateways?
body: <p>I want to create a PHP app that can send text messages ; There are <a href="http://en.wikipedia.org/wiki/SMS_gateways" rel="nofollow noreferrer">different gateways for different email</a> carriers.</p>
  
  <p>Is there any library I could use that would be able to lookup or detect which gateway to use just by passing the phone number into it? This way I can take whatever email address I get out and use PHP's email functions to send a message.</p>