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Answer by RickJansen for How to handle apples feedback-service when pushing...
I think the feedback service will not tell you about invalid tokens, but only about proper devices where your app is no longer installed.
View ArticleHow to handle apples feedback-service when pushing to devices?
I am using Apples (enhanced) push notification system for sending pns. Before pushing to all devices (18k), I run the feedback-service and remove the invalid tokens. Then I start pushing to all...
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