FOS\UserBundle\Util\Mailer::sendEmailMessage PHP Method

    protected function sendEmailMessage($renderedTemplate, $fromEmail, $toEmail)
    {
        // Render the email, use the first line as the subject, and the rest as the body
        $renderedLines = explode("\n", trim($renderedTemplate));
        $subject = $renderedLines[0];
        $body = implode("\n", array_slice($renderedLines, 1));
        $message = \Swift_Message::newInstance()->setSubject($subject)->setFrom($fromEmail)->setTo($toEmail)->setBody($body);
        $this->mailer->send($message);
    }