Hi Bozzak,The default Email app usually only downloads the emails for you and isn't set to change or communicate back to Yahoo's servers.I don't have a solution to set up the app to communicate back to the servers but I recommend you to try the offic...
Dear Big-dog,Expanding on what Meowmix's comment. You can apps that you can send pictures over WiFi. Apps like WhatsApp may suit your needs, but these apps requires the sender and receiver to have the same app.
