Modern Mailjet Bundle
for Symfony 7

// Async: returns instantly, email sent in background
// Your HTTP response is fast — email queued for worker!

$email = EmailMessage::create()
    ->from('newsletter@myapp.com', 'My Newsletter')
    ->to('subscriber@example.com', 'John')
    ->subject('This week in My App')
    ->htmlBody($html);

// ⚡ This returns in <1ms — email queued in Redis/DB
$this->emailSender->sendAsync($email);

// Start the background worker (run in a terminal):
// $ php bin/console messenger:consume async --time-limit=3600

// Or in production with Supervisor (keeps the worker running):
// [program:messenger]
// command=php /var/www/html/bin/console messenger:consume async

// Attach a PDF invoice to the email
$email = EmailMessage::create()
    ->from('billing@myapp.com', 'Billing')
    ->to('customer@example.com')
    ->subject('Your Invoice #2026-042')
    ->htmlBody('<p>Please find your invoice attached.</p>')

    // Attach from a file path (most common)
    ->attachFile('/var/invoices/invoice-042.pdf')

    // Attach a file with a custom display name
    ->attachFile('/tmp/report.xlsx', 'Monthly Report.xlsx')

    // Attach raw binary content (e.g. generated in memory)
    ->attach('receipt.pdf', $pdfBinaryContent, 'application/pdf');

$this->emailSender->sendNow($email);
// ✅ Files are automatically Base64-encoded for the API

// Inject the low-level client for batch sending
use Fabconejo\MailjetBundle\Contract\MailjetClientInterface;

class NewsletterService
{
    public function __construct(
        private readonly MailjetClientInterface $mailjet
    ) {}

    public function sendNewsletter(array $subscribers): void
    {
        // Build one email per subscriber
        $messages = [];
        foreach ($subscribers as $subscriber) {
            $messages[] = EmailMessage::create()
                ->from('newsletter@app.com')
                ->to($subscriber['email'], $subscriber['name'])
                ->subject('Weekly Newsletter')
                ->htmlBody($html);
        }

        // Send up to 50 per call — dramatically more efficient!
        foreach (array_chunk($messages, 50) as $batch) {
            $this->mailjet->sendBatch($batch);
        }
    }
}