Detection
Detection identifies catch-all behavior during standard validation and keeps the canonical result risky when mailbox certainty is unavailable.
All concepts
Catch-all recovery semantics
Catch-all detection vs recovery
Catch-all detection explains uncertainty. Premium Catch-All Recovery is a separate opt-in workflow that scores what to do next.
Canonical status
risky
Status language is backed by the shared validation result contract and product publish gates.
Quality signals
- catch-all
- risky
- recovery confidence
Recommended actions
- Keep detection and recovery fields separate
- Do not convert risky to valid
- Use recovery output as routing guidance
Recovery
Recovery is opt-in and non-intrusive. It adds confidence, method, and recommended action fields without sending verification emails or changing the canonical validation status.
Related resources
Common questions
Does recovery prove mailbox existence?
No. Recovery provides routing confidence and recommended action while preserving the underlying catch-all uncertainty.