I have the same problem. With my Lion Server worked fine and pushed new mails from my own mail server on the mac mini to my iOS devices. Now I'm using Mountain Lion with the Server App and I can't receive push mails on my devices. I also have new push certificates from apple. I'm not using the Profile Manager (With Lion Server I also didn't use it, and push worked!). So I can't set the Mail Notifications to Push on my devices for the mail account on my ML Server.
When I filter the Console on the Server I can see the following messages:
16.11.12 17:58:49,142 push_notify[14519]: Opening connection to apn feedback server feedback.push.apple.com for topic com.apple.mail.XServer.64a87de9-5f35-42d3-9cb0-0631b8942ff8
16.11.12 17:58:54,697 push_notify[14519]: Disconnected from apn feedback server feedback.push.apple.com for topic com.apple.mail.XServer.64a87de9-5f35-42d3-9cb0-0631b8942ff8
16.11.12 18:15:12,445 apsd[84]: <APSConnectionNotificationQueue: 0x7fa8d48537d0>: outstanding count -1 for com.apple.apsd-queue-port=com.apple.syncdefaultsd.push-user=501-env=production
The Last message repeats more and more. Is the server trying to push, but has a failure? I don't understand the output.
Greets