Real users in, throwaways out.
Protect signups and onboarding from fake and disposable emails.
No card · 100 free · GDPR
AI — The disposable is farming your free trial — block it at signup. Real activation only counts inboxes that exist.
Stop the bad addresses at the source.
Free trials and self-serve signups invite abuse: throwaway inboxes farming credits, bots inflating your metrics, and typos that break onboarding emails before a user ever activates. Your activation funnel and your unit economics both pay the price.
- Here's the fix. EmailListChecker verifies every signup in real time, blocking disposable and bot addresses at the door while letting real users straight through. Onboarding emails, magic links and verification codes reach inboxes that exist — so activation isn't quietly broken by a mistyped address, and your trial abuse drops.
Outcomes, not just a status column.
The point isn't a green checkmark — it's what changes for your team when the data is finally trustworthy.
Block disposable and bot signups before they farm trials or skew metrics
Guarantee onboarding emails and magic links land so users actually activate
Keep signup metrics honest — count real users, not throwaway inboxes
Drop it into your auth flow with a sub-second real-time API
Everything saas & technology needs.
The specific tools this job calls for — all in one verifier, all talking to the same AI.
Signup-abuse prevention
Block disposable and fake addresses at registration before they cost you.
Account-quality signals
Verdicts feed onboarding, scoring and fraud checks across your product.
Scales with you
Real-time and bulk on one API, SLA-backed, with volume pricing.
Built to pass procurement.
The controls, scale and support that security, legal and engineering teams require — without the enterprise-software tax.
Security & compliance
SOC 2 Type II, GDPR and a signed DPA. Encryption in transit and at rest, deletion on request, and lists that are never sold or shared.
99.9% uptime SLA
A written availability SLA, redundant infrastructure and public status — a verification API the rest of your stack can depend on.
Dedicated support
Priority support, guided onboarding and a named success contact who helps you interpret results and tune your verification strategy.
Scale & throughput
Millions of addresses per job, real-time and batch on one API, with SDKs, webhooks, dedup and volume pricing that improves as you grow.
Governance & access
Team seats with role-based access and an audit trail, plus SSO / SAML for centrally-managed enterprise accounts.
Commercial that fits
Credits that never expire, custom contracts, invoicing, MSAs and security reviews — built for procurement, not a credit-card wall.
Good to know.
Ready for data you can trust?
Start with 100 free verifications — no credit card. See exactly what clean looks like for your list before you spend a cent.