if(!empty($request->getPost('copie'))){ //If there is emails in the form
            $copies = explode(" ", $request->getPost('copie'));
        }
$mail->setBody($EmailBody)
            ->setFrom($userEmail)
            ->setEncoding('UTF-8')
            ->addTo($toEmail)
            ->setCc($copies)
            ->setSubject($objetMail);