Email Finder and company signal reliability updates

Email Finder now separates retryable results from definitive misses, while company signals apply stricter evidence rules and preserve structured registry data.

Saber improved the reliability of Email Finder results and company signal evidence.

What changed

Email Finder results and domain matching

Temporary greylisting or an exhausted verification budget returns status: inconclusive instead of a hard error or a definitive not_found result.
Single and batch requests use the same found, not_found, and inconclusive outcome vocabulary.
Domain recovery rejects unrelated companies, parking pages, and common noise sources before using a replacement domain.
Optional company_name and location fields can anchor recovery to the intended company and region.

Company signal evidence

Failed, blocked, empty, or inconclusive research is treated as unknown instead of evidence for a categorical negative.
For questions with multiple alternatives, a negative answer requires direct evidence that rules out every alternative.
When a question names a specific legal entity, facts about its parent, subsidiaries, customers, or suppliers are not treated as proof for that entity.
Signal research can preserve structured JSON from registry-style sources instead of reducing it to webpage text.

Customer action

Retry inconclusive Email Finder results later. When a supplied domain may be stale, provide company_name or location to improve domain recovery. No action is required for company signal runs.