email.failed

When it triggers

This event fires when SendKit is unable to send the email. This can happen due to internal errors, invalid configurations, or issues with the sending infrastructure.

Payload

{
  "type": "email.failed",
  "data": {
    "email_id": "em_abc123",
    "from": "hello@yourdomain.com",
    "to": "user@example.com",
    "subject": "Welcome to SendKit",
    "tags": [],
    "created_at": "2026-03-02T12:00:03+00:00"
  },
  "created_at": "2026-03-02T12:00:03+00:00"
}

Payload fields

string

Unique identifier of the email.

string

Sender email address.

string

Recipient email address.

string

Email subject line.

array

Tags associated with the email. Each tag has name and value string fields. Returns an empty array if no tags were set.

string

ISO 8601 timestamp of when the email was created.

Getting Started

Emails

Contacts

When it triggers

Payload

Payload fields

​When it triggers

​Payload

​Payload fields

When it triggers

Payload

Payload fields