iPad mail shows a copy of sent mail in inbox My sent emails show in my inbox on my iPad. I have looked but "always bcc myself" is not checked. This problem has started only recently, but I am not aware of anything I may have done to start it. 
It doesn't happen when I send emails from my Mac computer using the same account.
Are you sending yourelf a bcc: of all mail?

Check your: settings > mail, contacts, calendar > always bcc myself 

See if that slider is turned on.