public function sendCommand(
        $recipientMail,
        $templateFile = 'resource://KayStrobach.Custom/Private/Templates/Mail/Default.html'
    ) {

        $this->output->output('Sending Mail to ' . $recipientMail);

        $mailUtility = new MailUtility();
        $mailUtility->send(
            $recipientMail,
            $templateFile,
            [
                'values' => []
            ]
        );

        $this->output->outputLine(' <success>[DONE]</success>');
    }