Comment 1 for bug 1445380

A few comments/questions:

 - what does Android do, does it temporarily enable data for the sole purpose of uploading a MMS payload?

 - what about receiving, does Android allow receiving a MMS when mobile data is disabled?

 - iOS8 doesn't allow a MMS message to be sent if mobile data is disabled. I didn't check the receive case, however note the user experience is pretty much the same as ours, a failure indication is shown in Messages, but no real explanation given.

 - it might be a good short term enhancement to add a more meaningful error popup to the messaging app when mobile data is disabled, or better yet disallow the user to tap the camera icon in this state.

 - I'm not sure I agree with the statement that received MMS messages are free, I think this is dependent on the carrier, and is one of the reasons some phones have the ability to defer downloads of MMS content.

For now, I've confirmed and changed the importance to Wishlist.