accuracy

About Accuracy

Better email decisions start with better data.

Accuracy helps businesses verify email addresses before they send or save. We combine multiple verification signals to deliver clear, trustworthy results—not just a green or red badge.

Explore AccuracyHow verification works
john@example.comValid
  • SyntaxPass
  • DomainPass
  • MX recordPass
  • SMTPPass
  • Catch-allNo
  • DisposableNo
  • Role accountNo

Reason: Deliverable

Clear results, not just labels

The old way

Not enough information.

Most tools only tell you “valid” or “invalid.”

john@example.comValid

That’s it.

The Accuracy way

Clear results. Clear reasons.

We show you what’s behind every result.

john@example.comValid
SyntaxDomainMX recordSMTPCatch-all

Reason: Deliverable

Why we are building Accuracy

Accuracy is an early-stage email verification product currently focused on making bulk list verification easier to understand and act on. We are preparing the bulk verification experience for deployment and testing, then improving it from real customer feedback.

Transparent

We explain why a result was returned so you can make better decisions.

Reliable

We use multiple signals and real-time checks before returning a result.

Simple

Powerful verification should be easy to use for everyone.

One verification engine. Two ways to use it.

Bulk email verification

Have an email list? Upload a CSV or JSON file, verify thousands of emails, and download clean results.

Explore bulk verification

Email verification API

Building a product? Verify emails in real time with our fast, reliable API and easy integration.

Explore API

How we think about accuracy

  1. Syntax

    Is the email format valid?

  2. Domain

    Does the domain exist?

  3. DNS / MX

    Can the domain receive email?

  4. SMTP

    Does the mail server accept it?

  5. Risk analysis

    Catch-all, disposable, role accounts, and more.

  6. Result

    Valid, invalid, risky, or unknown.

How we handle your data

We use submitted email data to provide verification results. Review our Privacy Policy for what we collect, why we process it, and how long we retain it.

Read the Privacy Policy

Built for businesses that rely on email

  • Startups

  • SaaS

  • Sales teams

  • Marketing

  • CRM / platforms

  • eCommerce

  • Developers

  • Agencies

Ready to improve your email data?

Check email addresses before they enter your product or campaign. Start with 100 free credits and review every result before you use it.

Start verifying freeView pricing