> For the complete documentation index, see [llms.txt](https://docs.mailtrap.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mailtrap.io/inbound-email/webhooks.md).

# Webhooks

Step-by-step guide to setting up Mailtrap Inbound Email webhooks for real-time new-message notifications, signature verification, and delivery retries.

In this article, you'll learn how to configure Mailtrap webhooks to get notified about every new message you receive in your inbound email inbox.

### How it works

When a new email arrives, Mailtrap POSTs a JSON payload to your webhook URL. The payload includes an `events` array where each object contains the event (`inbound.message_received`), a unique event ID, a Unix timestamp, the inbox ID, the Mailtrap message ID, and the sender name.

Payloads are signed with HMAC-SHA256 via the `mailtrap-signature` header so you can verify they came from Mailtrap.

{% hint style="info" %}
Failed deliveries are retried every 5 minutes, for up to 40 attempts. The same retry schedule applies to outbound webhooks.
{% endhint %}

#### Step 1. Either [create your webhook via API](https://docs.mailtrap.io/developers/email-sending/webhooks) or go to [Mailtrap webhooks](https://mailtrap.io/webhooks), click on Create New Webhook

#### Step 2. Add your Webhook URL, select Inbound Inboxes, and select your Inbox

<div align="left" data-with-frame="true"><figure><img src="https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2FnV9q0gTbaFn49FBpJwce%2FSCR-20260926-pyrm.png?alt=media&amp;token=9cc71120-c524-4171-a577-54fc6f1b56ea" alt="" width="563"><figcaption></figcaption></figure></div>

#### Step 3. Once you receive a message in your Inbound Inbox, you should see the following output from your webhook:

<figure><img src="https://1476453098-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FS3xyr7ba7aGO19rc8dSK%2Fuploads%2FvVQJhC4x0ncYQf7KpyPe%2Fwebhook%202.png?alt=media&amp;token=61f20768-2752-4d5d-976b-0e69197d3b78" alt=""><figcaption></figcaption></figure>


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