/emails/{id}/insights
curl -X GET "https://example.com/emails/497f6eca-6276-4993-bfeb-53cbbbba6f08/insights"{ "object": "email_insights", "email_id": "8e6bf5ae-e456-4654-87f8-33e2156caffc", "score": 0, "score_version": 0, "band": "excellent", "marketing": true, "html_size_bytes": 0, "computed_at": "string", "checks": [ { "id": "string", "severity": "critical", "status": "pass", "penalty": 0, "detail": { "property1": null, "property2": null } } ]}