title: IOS Deeplinking- Pass msg from email to your app
body: <p>Existing user of the app will send email to other user.</p>
  
  <p>Other user may have app installed or not installed on their device. 
  The email will contain some token. Now I want to pass that token to my app. I have read that by deep-linking, its possible. But how will I handle the case when other user have not installed my app yet in their IOS device.</p>
  
  <p>Any help is appreciated.</p>