Currently Being ModeratedMay 11, 2013 2:01 AM (in response to Winstone00)
Not much you can do there. You can go into Settings then Mail then into the account and flick the mail to Off. That would prevent accidental access but a determined person can easily switch it on again. I don't think you can do anything in Restrictions. The only other option would be to delete the accounts from the device. Easy enough to reload them but a bit of a drag.