E-mail to various recipients in phpmailer

Question

Hello, I’m having a problem, I’m trying to get phpmailer to send an email to several recipients at the same time, but only appear para:[email protected] just that and without showing the other emails that were sent how to do this?

function get_emails($con){
    $sql = $con->prepare("SELECT * FROM cadastros");
    $sql->execute();
    $get = $sql->get_result();
    $total = $get->num_rows;

    if($total > 0){
        $id = 0;

        while ($dados = $get->fetch_row()) {
            $rows[] = $dados['1'];
        }

        foreach($rows as $key){
            $id ++;

            if($id < $total){
                $emails = $key." ";
            }else if($id>1){
                $emails = $key;
            }
        }

    }
}

function send_mail($con){
    if(isset($_POST['env']) && $_POST['env'] == "email"){

        $mail = new PHPMailer();
        $mail->isSMTP();
        $mail->Host = 'smtp.gmail.com';
        $mail->SMTPAuth = true;
        $mail->SMTPSecure = 'tls';
        $mail->Username = '[email protected]';
        $mail->Password = 'senha';
        $mail->Port = 587;



        $mail->setFrom('[email protected]', 'Stephanto');
        $destinos = get_emails($con);
        $mail->addAddress($destinos);
        $mail->addReplyTo('[email protected]');

        $mail->isHTML(true);
        $mail->Subject = $_POST['assunto'];
        $mail->Body = '<div style="borger:2px solid red;"></div>';

        if(!$mail->send()){
            echo "<div class='alert alert-danger'>Erro ao enviar o E-mail! </div><br>";
            echo "Erro: ".$mail->ErrorInfo;

        }else{
            echo "<div class='alert alert-successes'>E-mail enviado com sucesso! </div>";
        }