/**
* @param EmailInterface $email
*
* @return \Swift_Message
*/
private function composeMessage(EmailInterface $email)
{
/** @var $message \Swift_Message */
$message = $this->mailer->createMessage();
$message->setTo($email->getReceiver())->setSubject($email->getSubject())->setBody($email->getBody(), 'text/html');
return $message;
}