M2 – wysyłanie wiadomości e-mail w PHP

/* @var \Magento\Framework\App\State $state */
/* @var \Magento\Sales\Api\OrderRepositoryInterface $orderRepository */
/* @var \Magento\Store\Model\StoreManagerInterface $storeManager */
/* @var \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig */
/* @var \Magento\Framework\Translate\Inline\StateInterface $inlineTranslation */
/* @var \Magento\Framework\Mail\Template\TransportBuilder $transportBuilder */

$order = $orderRepository->get(1);
$storeId = $order->getStoreId();
$templateOptions = array('area' => MagentoFrameworkAppArea::AREA_FRONTEND, 'store' => $storeId);
$templateVars = array(
    'store' => $storeManager->getStore($order->getStoreId()),
    'order' => $order,
);
$inlineTranslation->suspend();
$to = array($order->getCustomerEmail());
$sender = [
    'name' => $scopeConfig->getValue(
        'trans_email/ident_sales/name',
        MagentoStoreModelScopeInterface::SCOPE_STORE
    ),
    'email' => $scopeConfig->getValue(
        'trans_email/ident_sales/email',
        MagentoStoreModelScopeInterface::SCOPE_STORE
    )
];
$transport = $transportBuilder->setTemplateIdentifier('payreminder_email_general_email')
    ->setTemplateOptions($templateOptions)
    ->setTemplateVars($templateVars)
    ->setFrom($sender)
    ->addTo($to)
    ->getTransport();
$transport->sendMessage();
$inlineTranslation->resume();