I have gmail setup in blackberry phone email app. If I send an email from the phone or the computer, I get an email sent to my phone as an email saying everything I just sent in the email. Very annoying on the !
Do you mean there is no BIS account log in? I think that is the only place to fix it, so I think you must have a way to do it. All carriers have such a site AFAIK.
What you need to do is log in to that account and delete the auto bcc.