Sortance turns email verification into a probability

Field notes

Sortance accepts an email address through a POST endpoint and combines provider responses into a richer payload than a binary verdict. Its example includes a 1.2% bounce probability, a 0.4–3.1% confidence interval, provider disagreement, actor classification, 41 ms total latency, and a $0.00045 provider cost. The page says the router caches aggressively and escalates only ambiguous addresses, while presenting per-1,000-sends-protected pricing rather than per-check billing.