With all 4 boxes checked, same issue, does not show mail as an option and does not allow me to attach a picture in the body of the email.
The exchange account is not a managed app, as I have nothing with exchange in my managed apps, however it is part of the profile being pushed.
I then rechecked use only in mail, and I can now see email again as an option, but when I select it again cannot correlate it with an account already established on the device and wants me to setup a new account. Basically like the ipad cannot "see" the exchange account profile from camera roll.
I removed my ipad from the standard profile we have setup for everyone, and added my exchange account manually and even though my device is being managed, this gives me full functionality from the camera roll as well as insert attachment from email.
The fault then lies in the profile we have setup for these accounts. Not sure at this point if it would be easier to remove the exchange push completely and setup manually as I have less than 50 devices at this point?