Your verifier's "99% accuracy" has no denominator
This story is from 2026-09-18. It is preserved in the archive; the latest stories are on the live feed.
Every email verification vendor is asked for one number, and it is the one number nobody outside the vendor can check. Not because the vendors are lying - because the thing being measured is decided by the receiving mail server at the moment of the call. Three layers, only one of which is a fact La…
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- 2026-09-18 14:17 · DEV Community — AI
Your verifier's "99% accuracy" has no denominator