Notification::toAllAuthors

public function toAllAuthors()
{
	$list = Entity\Letter::getList(array(
		'select' => array('CREATED_BY'),
		'filter' => array(
			'=MESSAGE_CODE',
			'!=CREATED_BY' => null
		),
		'group' => array('CREATED_BY'),
		'cache' => array('ttl' => 3600),
	));
	foreach ($list as $item)
	{
		$this->addTo($item['CREATED_BY']);
	}

	return $this;
}