3 ms·Welcome to 2015, where Push Notifications are a feature and not default anymore.by blueflow 11y agoWelcome to 2015, where Push Notifications are a feature and not default anymore.feld 11y agoIMAP doesn't have "push". This is something Apple built to stop wasting your battery by trying to use the terrible IMAP IDLEblueflow 11y agoTCP Connections can be upheld in IDLE-Mode for 25 Minutes without causing any traffic.feld 11y agoYes, but this doesn't let your mobile phone's radio sleep and eats excessive battery.blueflow 11y agoWhen the radio sleeps, how should the Phone notice the push? How do you think Apple's push works? Edit: Apple's APN also uses TCP.