I wanted to send an email I typed in my iphone from a cybercafe without wifi access. I just setup a adhoc wifi network and sshfs the whole file system. For ssh setup, see my previous blog post. I discovered that email are clearly stored in : /private/var/mobile/Library/Mail And emails are stored as .emlx files. To read those files use a mail client just like thunderbird or use a simple text editor. You can use a base64 decoder to decode encrypted message part when necessary.