First I didnt add text... so I got the email saying I needed to have at least one character

sent it again, and got this:

Hello Mari,
We're sorry, but we could not process your emailed reply / new thread.
You tried to upload a file with the extension type of JPG. That extension type is not permitted.
Thank you,

ummm. so.. my iphone takes pics a JPG .... what can I do?