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Hello,According to APNS documentation; (https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server/sending_notification_requests_to_apns)Apple specificy the following api address when communicating with APNS;Development server: api.sandbox.push.apple.com:443Production server: api.push.apple.com:443I've tried both of these url's using port's 443 & port 2197 both not working with 443 always returning a connection refused error. My 443 & 2197 ports are open for inbound & outbound traffic.However, if I use the following url gateway.sandbox.push.apple.com:2195, everything works as expected.Can anybody provide any reason why the documentation does not specify what works?Thanks,James