ExSp33db1rd,
It is IMPOSSIBLE to send to BCC addresses, because the BCC addresses are used by the sender's email server to send the mails individually. You will NEVER receive an email with a list of all the BCCs the sender sent to.
The BCC addresses ARE NOT passed to the recipients. The sender's server removes the BCC header.
The RFC standards explicitly state this :
The "Bcc:" field (where the "Bcc" means "Blind Carbon Copy") contains addresses of recipients of the message whose addresses are not to be revealed to other recipients of the message.