Yii2, how, using SMTP and IMAP, to put a copy of the letter in sent?

Question

Yii

An approximate algorithm has developed in my head ... I put "myself" in a hidden copy.
And after sending by means of IMAP to move this letter? Isn't it difficult? Or is there a better solution?

$message = Yii::$app->mailer->compose()
            ->setFrom(['[email protected]_ya.ru'])
            ->setTo(['[email protected]_ya.ru'])
            ->setBcc('[email protected]_ya.ru')
            ->setSubject('Пробное письмо');
        $message->send();

Thank you in advance!