feedmail-nuke-bcc

feedmail-nuke-bcc is a variable defined in `feedmail.el'.
Its value is

t

Documentation:
If non-nil remove Bcc: lines from the message headers.
In any case, the Bcc: lines do participate in the composed address
list. You may want to leave them in if you're using sendmail
(see `feedmail-buffer-eating-function').

You can customize this variable.