Product
Email Verification.
Verify every email address before it hits your sending queue. Reduce bounces, protect your domain reputation, and reach real inboxes.
What gets verified
Every signal that determines deliverability.
Email verification isn't just checking if an address looks valid. Filto checks whether it's real, reachable, and worth sending to.
Deliverability
Checks whether the email address can actually receive mail. Catches hard bounces before they happen.
Disposable Detection
Flags temporary or throwaway email addresses - common in form fills and low-intent signups.
Role-Based Detection
Identifies addresses like info@, support@, or sales@ that belong to teams, not individuals - poor targets for personalised outreach.
Domain & MX Record Check
Verifies the domain is active and has valid mail exchange records configured. Dead domains mean dead emails.
Verification provider
You choose the engine. We run it.
Filto integrates with leading email verification providers. We default to ZeroBounce for its accuracy - but if you have an existing preference or contract, we'll use that instead.
Provider preference is set at account level. You can change it any time.
ZeroBounce
DefaultHighest accuracy rate in independent testing
Real-time API with sub-second response
Catch-all and disposable detection
GDPR compliant, data never stored
Filto acts as the orchestration layer. Your data passes through the selected provider's API and results are returned through Filto - no extra integration required on your end.
How it works
Upload a list. Know which emails are real.
Upload your email list
Export your list as a CSV and upload it. Single emails or bulk lists - both work. API coming soon.
Filto runs verification
Each address is checked for deliverability, disposable patterns, role-based flags, and domain health - via your chosen provider.
Get results back
Each email is returned with a status: valid, invalid, catch-all, or unknown. No ambiguity.
Send with confidence
Import the cleaned list back into your email platform. Lower bounce rates, better deliverability, protected sender reputation.
Get started
Stop sending into the void.
Every bounce hurts your sender reputation. Upload a sample list and see exactly which emails are costing you deliverability.
verification per email address
default provider - swappable any time
checked per email: deliverable, disposable, role-based, domain