Event: bounced

Email-only event — fired when AWS SES returns a bounce notification. Hard bounces (bounceType: "Permanent") should be treated as a signal to suppress the address from future broadcasts.

Payload

The payload of this webhook request is an object.

eventenumRequired

timestampdatetimeRequired

dataobjectRequired

Response

2XX

Acknowledge receipt within 10 seconds.

1	{
2	"event": "bounced",
3	"timestamp": "2026-05-06T10:18:09.554Z",
4	"data": {
5	"messageUuid": "00000000-0000-0000-0000-000000000113",
6	"broadcastUuid": "00000000-0000-0000-0000-000000000020",
7	"channel": "email",
8	"email": "no-such-mailbox@example.com",
9	"bouncedAt": "2026-05-06T10:18:09.554Z",
10	"bounceType": "Permanent",
11	"bounceSubType": "General",
12	"diagnostic": "smtp; 550 5.1.1 The email account that you tried to reach does not exist."
13	}
14	}