title: SMS/ Email notification in iOS objective C
body: <p>How do I send notifications via SMS or Email to users? The server side is done in PHP using Drupal framework. I know how the push notification works. But I do not have an idea on the SMS and Email notification.</p>
  
  <p>I do not know from where to start. I browsed but I did not understand what to follow as I am not very much experienced in app development.</p>