Hi, I searched this and found several "similar" results, but not quite the same. I can no longer receive emails that have been generated from my iPad or I phone when I send them to myself. I can send emails to others and receive emails from others on both devices. I have not changed any settings and it seems to have happened around the time I installed iOS 5, iCloud and moved mobile me. It may be coincidence.
My example is; when I need to send a pic off my iPhone so I can open it on my iPad to use it. Also, if I create a doc on my iPad and need to send it email so I can open it on my computer.
I've deleted my email and started new and reset both devices. Still no luck.