STMP, mail, sender-from, to-bcc-addr

[durumdara]

Hi!

I wanna ask that have anyone some experience with email.msg and smtplib?

The email message and smtp.send already have "sender/from" and 
"recip/addr to".
Possible the smtp components does not uses the email tags if I not 
define them only in the message?

Can I do same thing as in GMAIL that the mail does not have TO, only BCC 
tags/recipients, and no one of the recipients who knows about the each 
others?

Thanks:
    dd