What changed
Reads of this field return undefined, and the failure surfaces wherever that value is used rather than at the call.
Affects email-security_MessageDetails reachable from 3 operations.
Who is affected
Code that reads Cloudflare's email-security_MessageDetails objects, used by 3 Cloudflare operations.
Before and after
| Where | Before | After |
|---|---|---|
| email-security_MessageDetails.validation.dmarc | present | absent |
Code that breaks
// response.validation.dmarc is now undefined const dmarc = response.validation.dmarc;
Based on Cloudflare’s published API specification. How severity is decided.