I see that sendmail doesn't support BCC, it just strips the field.  =
However CC is supported just fine.

If I take a BCC header line and parse it out and send them as multiple =
RCPT TO commands, everyone who gets the message see apparently to: and =
all the other recipients.  If I send a solitary To: before the Subject: =
line, nobody else see the message.

Just curious why the behavior and why BCC isn't supported?

jam