I'm new here, so if this has been covered please forgive me. I have a 8703e on Verizon, and I have been trying to change the email signature. I have discovered that if you logon to BlackBerry Internet Service from your deskktop and select "edit" for your email account you can change the signature to what you wish. This gets rid of the "Sent from my wireless blackberry device" signature. Hope this helps.