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# Message Sent

POST 

Reference: https://docs.postnuvia.com/api-reference/webhooks/events/message-sent

## Request

### Headers

- `svix-id` (string, required) — ID of webhook message.
- `svix-signature` (string, required) — Signature of webhook message.
- `svix-timestamp` (datetime, required) — Timestamp of webhook message.

### Payload

- `type` ("event", required)
- `event_type` ("message.sent", required)
- `event_id` (string, required) — ID of event.
- `send` (Send, required)

## Types

### Send

- `inbox_id` (string, required) — The ID of the inbox.
- `thread_id` (string, required) — ID of thread.
- `message_id` (string, required) — ID of message.
- `timestamp` (datetime, required) — Timestamp of event.
- `recipients` (list of string, required) — Sent recipients.