Mailbox::cacheMessage

protected function cacheMessage(&$body, $params = array())
{
	if (empty($params['origin']) && empty($params['replaces']))
	{
		$params['lazy_attachments'] = $this->isSupportLazyAttachments();
	}

	return CMailMessage::addMessage(
		$this->mailbox['ID'],
		$body,
		$this->mailbox['CHARSET'] ?: $this->mailbox['LANG_CHARSET'],
		$params
	);
}