Email Health Check by Truelist - Grade your email list's health in 30 seconds, free

Hey Product Hunt 👋 Corey here, co-founder of Truelist. Every email list is quietly rotting. People change jobs (~2–3% of B2B addresses die per month), companies get acquired and their domains vanish, and typos pile up at the top of your funnel. You don't notice until a send bounces hard enough to hurt your sender reputation — and by then the damage is done. The Email Health Check is the "step on the scale" moment: upload a CSV, and every address gets checked in real time against actual mail servers — not a syntax regex, the real SMTP-level verification our platform runs. Thirty seconds later you have an overall health grade and the breakdown: Ok, Risky, Catch-all, Invalid. Things we deliberately didn't do: - No signup to see results - No "enter your email to receive the report" gate - No fake precision — catch-alls are labeled catch-alls, not guessed at If your list grades well, wonderful, go send. If it doesn't, at least now you know before the bounces told you. (And yes — cleaning it is the thing we charge for. The diagnosis is free.)