when I send a message with the recipients on the bcc field the mail on the
recipient side is always showing on the 'To' field the senders email address
though the bcc recipients do not see one another.

I would like to have the 'To' field not showing anything when I send the bcc
to the recipients.

In short I would like that when I send email as bcc then the recipients
receives it with neither of the addressing fields showing anything.

Kindly assist me on this.