On this page I describe some Mail-related iPhone OS tweaks. Note that they assume that (1) your device is already jailbroken and , (2) you have installed OpenSSH to browse files on it , and that (3) you have iPhone OS 3.0 or higher on your device. If that's not the case, please [http://blog.iphone-dev.org visit the official Dev team website] for instructions on how to jailbreak your device. Once that's done, open Cydia and install OpenSSH. '''''Please immediately [http://www.iphonefaq.org/archives/97721 change your root password] after you do this to prevent your device from being hijacked.''''' Once that's done, you will need an SFTP client for your computer to browse and transfer files. That is beyond the scope of this tutorial, so [http://www.google.com/search?q=browse%20files%20iphone%20openssh Google is your friend].