Fires when a one-click unsubscribe (List-Unsubscribe-Post) is processed for the recipient.

​
Payload

{
  "id": "evt_xxxxx",
  "event": "email.unsubscribed",
  "timestamp": "2026-03-28T11:00:00Z",
  "data": {
    "message_id": "msg_email_xxxx",
    "channel_id": "ch_email_yyyy",
    "to": "jana@example.com",
    "unsubscribed_at": "2026-03-28T11:00:00Z"
  }
}
​
data.message_id
string
Identifier of the message from which the unsubscribe was triggered.
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data.channel_id
string
Email channel used for the send.
​
data.to
string
Recipient address that unsubscribed.
​
data.unsubscribed_at
string
ISO 8601 time when the unsubscribe was recorded.
The contact’s email NEWSLETTER consent record status is set to REVOKED and they are suppressed from future subscription sends.