The iOS app i developed uses APNS. Locally i could simulate the whole process from saving device tokens, sending push notifications to deleting device tokens with help from APNS feedback successfully. Also in production it worked for a short time.
Now my webhoster closed port 2196. Port 2195 is available, so sending notifications is still possible. I do not want my ios app to get on the blacklist, so is there any other way to register whether a user has deleted my app on their device? Or will i have to look around for another webhoster, who has both ports open? Any suggestions?
You'll have to look for another host or look into 3rd party solutions that have a Feedback API. I know Urban Airship had one (haven't used it in a while) and may be giving access to it freely.