Verify any email address
in real-time

Five checks in under 500ms: RFC syntax, MX records, disposable detection, role-account filtering, and live SMTP RCPT probing. Free in your browser — API for marketers, sales, and developers coming soon.

What we check, every time

Five layers of validation. Each one catches a different class of bad address.

RFC 5322 syntax

Strict parsing of the local part and domain — catches typos and malformed addresses before they reach your queue.

MX record lookup

Confirms the domain can actually receive mail. No MX = guaranteed bounce.

Disposable detection

652 disposable providers covered — Mailinator, Guerrilla, Temp-Mail, 1mail, and growing.

Role-account filter

Flags info@, admin@, sales@ and 84 other generic mailboxes that hurt deliverability.

Live SMTP RCPT probe

We connect to the real receiving mail server and ask if the address exists — no test message sent, no spam risk.

Catch-all detection

Identifies domains that accept any address, so you know your "valid" result is actually meaningful.

Plans

Browser

Free

For one-off checks

  • Unlimited browser checks
  • All 5 validation layers
  • Rate-limited per IP

Growth API

€99/mo

50,000 validations / month

  • Everything in Starter
  • Webhook callbacks
  • Priority queue
  • Slack support

API launching soon

Drop your email and we'll send one message when the API goes live — beta access for the first 100 signups, no spam, no follow-up emails ever.