title: How long does a push notification sit in queue before being removed?
body: <p>I've been digging around trying to uncover some data for apple's push notifications for a client and something I have been unable to find an answer to is how long a push notification will sit in queue for an offline device before it will be removed.</p>
  
  <p>There maybe long periods of time, 2-3 months for example, in which the device maybe inactive and powered off. I'm simply interested in knowing how long I can expect a notification to linger, waiting to be delivered to an offline device, before it gets automatically removed (which is what I understand to be what happens).</p>