Push Email iPhone 3G

I have an iPad 2, an iPhone 4S and my Mac, just switched everything to iCloud, everything seemed to go OK. I have now noticed that my email form each device will not sync, when I erase an email on my Mac it will  not delete on my iPhone or iPad, if I delete from either iOS device it will delete from the Mac but not the other iOS device. Any suggestions? Another thing push notifications do not seem to be working either at least on my four square app.

Thanks,

Felix