My work email is exchange, and it doesn't push on my new iPhone 5. I have all of the settings right for pushing. If I go to my mail, it says 'Checking Mail' and then new message show up. Any help with push notifications not working on the 5? Thank you.
This is an issue that a lot of people are having... it's all on this thread.
https://discussions.apple.com/thread/4345374?start=0&tstart=0
The 'fix' that is decribed in the first post does not work. The only workaround is if you are on Wi-Fi, turn off Cellular Data and then reset the push service by turning on Airplane mode for a few seconds and then turn it back off. Seems to be an issue with the iOS talking to the new LTE CDMA chip on Verizon and Sprint iPhone 5s.
Exchange push notifications not working on iphone5
