Brevo Webhooks and Event Tracking: Complete Developer Guide

Brevo Webhooks allow developers to receive real-time notifications whenever important email events occur. Instead of manually checking campaign reports, your application instantly receives updates such as delivered emails, opens, clicks, bounces and unsubscribes.

What Are Brevo Webhooks?

A webhook is an HTTP callback sent automatically when an event happens. Brevo sends a POST request to your server whenever a selected email event occurs, allowing your application to react immediately.

Why Use Webhooks?

• Real-time email tracking.
• Automate workflows.
• Update CRM records instantly.
• Track customer engagement.
• Reduce manual reporting.
• Trigger notifications automatically.

Common Brevo Webhook Events

How Webhooks Work

1. Your application registers a webhook URL.
2. Brevo monitors email events.
3. When an event occurs, Brevo sends a POST request.
4. Your backend receives the JSON payload.
5. Your application stores or processes the event.

Webhooks eliminate polling by sending data only when something important happens.

Typical Use Cases

• Update CRM automatically.
• Track customer activity.
• Send Slack notifications.
• Create analytics dashboards.
• Trigger marketing automation.
• Update user accounts instantly.

Setting Up Brevo Webhooks

Creating a webhook in Brevo takes only a few minutes. After configuring the webhook URL, Brevo automatically sends event notifications whenever selected email events occur.

1. Log in to your Brevo account.
2. Navigate to SMTP & API.
3. Open Webhooks.
4. Click Create a Webhook.
5. Enter your server endpoint URL.
6. Select the events you want to receive.
7. Save the webhook.

Example Webhook Payload

json
{
  "event":"delivered",
  "email":"user@example.com",
  "messageId":"abc123",
  "date":"2026-07-09T10:15:00Z",
  "ts":1783572900
}

Every webhook request contains structured JSON that your backend can process to update databases, trigger notifications or create analytics reports.

Security Best Practices

• Always use HTTPS endpoints.
• Validate incoming webhook requests.
• Verify request signatures if available.
• Reject unknown IP addresses when possible.
• Store webhook logs for troubleshooting.
• Never expose secret API keys.

Handling Failed Requests

If your server is unavailable, webhook delivery may fail. Your application should always return proper HTTP status codes and implement retry handling to avoid losing important events.

• Return HTTP 200 after successful processing.
• Log failed requests.
• Retry temporary failures.
• Queue events for background processing.
• Monitor server uptime.

Integrating With Your Backend

Brevo webhooks can be integrated with Node.js, Express, Next.js API Routes, Laravel, Django, Flask, Spring Boot and many other backend frameworks. Store incoming events inside a database to build reporting dashboards or trigger additional automation.

Webhooks transform email events into real-time business automation.

Advanced Webhook Use Cases

• Update CRM contact status automatically.
• Trigger Slack or Discord notifications after email delivery.
• Send follow-up emails after link clicks.
• Track campaign performance in real time.
• Synchronize customer activity with your database.
• Power custom analytics dashboards.

Common Webhook Mistakes

• Using unsecured HTTP endpoints.
• Ignoring failed webhook requests.
• Not validating incoming payloads.
• Processing events synchronously causing slow responses.
• Not logging webhook activity.
• Missing duplicate event handling.

Best Practices

• Respond quickly with HTTP 200.
• Process heavy tasks in background queues.
• Store webhook history for debugging.
• Monitor webhook failures.
• Secure endpoints with HTTPS.
• Regularly review delivery logs.

Related Guides

Frequently Asked Questions

Final Thoughts

Brevo Webhooks are one of the most powerful features for developers building modern email applications. By combining real-time event tracking with automation, analytics and CRM integrations, businesses can create faster, smarter and more reliable email workflows.