If I delete a sms message, text message, how long is it still avaiable for retrieval? I mean, does anyone really do this, audit text messages? And if they do, how long are they on some server?
If you are on a BES, your BES admins may have logs of those messages. Or they may not. BES gives them the capability, but they won't consider it their job to provide a backup service for your text messages.