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Protect deliverability before the send button

Bounces and spam traps cost sender reputation. Run your list through /v1/validate and drop or segment anything that fails MX, is disposable, or is a role mailbox that tends to mark as spam.

MX check catches domains that no longer accept mail

Disposable detection removes burners collected in giveaways

Role-based flags (info@, admin@) which drag engagement rates down

Deterministic results — same input, same verdict, every run

See it work

Live demoreal endpoint

try:

result appears here

That was the real API, no signup needed — free tier is 50 checks/day per IP (resets 00:00 UTC). See the docs for the full reference.

Hook it up

# same endpoint, same verdicts — one GET, no key needed
curl "https://validmail.dev/v1/[email protected]"

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