When I send a photo to my wife's iPhone it is about 3 meg and is in jpg format. Her email in iphone is hotmail. She receives the message but the photo is not visible. Just a box with an x in it where photo should be. Photo comes through in ipad mini and ipad fine but she would have to be home to look at them that way. If I attached photo to mms she gets it fine but of course it is not full size nor res. iPhone "genius" at store no help at all. Can anyone help? Thanks so much.