src/Valkyrja/Mail/PHPMailerMail.php
public function addBCC(string $address, string $name = ''): bool
    {
        return $this->PHPMailer->addBCC($address, $name);
    }
public function addBCC(string $address, string $name = ''): bool
    {
        return $this->PHPMailer->addBCC($address, $name);
    }
Add a blind copy recipient.

@param string $address
@param string $name

@return bool