11-20-2008 12:57 PM
SMS are handled by your carrier. It would require a court order to get it from them, but SMS are supposedly kept on their servers for a limited amount of time. If you did a backup of your device before the deletion, you could restore that SMS database back to your BB.
Email? Look on your email server, if it was a POP account or such. Not possible if the email was your @blackberry.net address.
PIN: C0001B7B4 Display/Scan Bar Code
PIN: C0005A9AA Display/Scan Bar Code