public function getTextMessageBody(ParserInterface $parser)
    {
        $message = $this->getMessageBody(
            $parser,
            $this->getTextMessage(),
            $this->getTextLayoutFileName(),
            $this->getTextTemplateFileName(),
            true // Do not compress the output, and keep empty lines.
        );

        // Replaced all <br> by newlines.
        return preg_replace("/<br>/i", "\n", $message);
    }