How do you do the blind copy? Forgive my complete ignorance, but I don't see BCE. I just see CC and BCC.
Also, can you send a blind copy to 50 recipients, with all 50 receiving the e-mail but none of them seeing the other recipients? I know that they will assume that others received the e-mail as well, but as long as they don't see who received the e-mail, we might be able to get them to respond.