Once the user has opted out of Push Notification your sending scripts will get a list of device tokens no longer opted in which you will have to remove from your side as well on receipt of the error report. Cookies are not used. The user has full control of the APNS process. The server is well aware once implemented correctly. https://developer.apple.com/library/archive/documentation/NetworkingInternet/Conceptual/NotificationProgrammingGuideForWebsites/PushNotifications/PushNotifications.html#//apple_ref/doc/uid/TP40013225-CH3-SW1
Topic:
App & System Services
SubTopic:
Notifications
Tags: