title: iTunesConnect. Invited External Testers do not receive emails with invitation
body: <p>For one of my projects I added 2 external testers as it is on the image below:</p>
  
  <p><a href="https://i.stack.imgur.com/GdnL0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/GdnL0.png" alt="enter image description here"></a></p>
  
  <p>But they didn't receive an emails from Apple. What should I do more? I need to use external testers because I know that <strong>External Tester</strong> (<em>opposite to Internal Tester</em>) do not have an access to every app on my account, except that one he was invited to.</p>