Twilio SendGrid Email API

Email Address Validation API

Protect your sender reputation and boost delivery rates by catching invalid addresses before they enter your system. Our real-time API validates email addresses at signup, flags disposable domains, and suggests corrections for common typos.

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Verify email addresses at scale

Our Email Validation API combines machine learning with real-time checking to keep your lists clean and reputation strong.

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    Catch issues in real-time

    Flag typos, suggest corrections, and stop invalid addresses before they enter your system.

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    Protect your sender reputation

    Identify and block high-risk addresses including disposable domains, role-based accounts, and known spam traps.

  • Shining stars

    Clean existing lists

    Bulk validate your email lists through our API to get detailed validity scores and risk assessments for each address.

  • User Checkmark

    Save development resources

    Our API handles everything from syntax checking to mailbox validation so your team can focus on core features.

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    Scale with confidence

    Process millions of validations backed by machine learning models trained on billions of email sends.

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    Maintain data privacy

    Our GDPR-compliant API never stores email addresses or personal data, giving you peace of mind about privacy regulations.

How email validation works

Choose your implementation method and start validating emails in minutes. Our flexible API supports both real-time and batch validation workflows.

Interface for generating an API key with email validation permissions and access settings.

Setup

Generate your API credentials

Create an account and get your API key. Use our comprehensive documentation to implement validation quickly in your preferred programming language.

Integrate

Add validation to your forms

Connect the API to your signup forms and user workflows. Get real-time responses including validity scores, suggestions for typos, and detailed status codes.

Monitor

Track validation metrics

Monitor your validation usage, success rates, and common issues through your dashboard.

Email address validation API pricing

Access email validation with Email API plans
Get email validation with an Email API plan, along with powerful sending capabilities, advanced analytics, and expert support.

Usage-based validation
Pay as you go with volume discounts that are automatically applied as your usage grows. There are no hidden fees or extra charges.

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Resources to help get you started

An Open book

Docs

Real Time Email Address Validation - API Reference

Learn how to get started with the API.
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Blog

Bulk Email Address Validation in Node.js

See how to integrate bulk email address validation using Node.js.
An Open book

Docs

Twilio Docs

Check out API reference documentation, quickstarts, SDKs, and code samples.

Build your complete email toolkit

Pair email validation with powerful tools to optimize your entire email program.

  • Email testing

    Test for spam triggers, validate links, and optimize load times before sending to your validated lists.

  • Deliverability insights

    Monitor your sender reputation, track bounce rates, and get actionable recommendations to improve inbox placement.

Get started for free

Join over 300,000 companies that trust Twilio SendGrid to power their email programs. Start with a free trial—no credit card or commitment required.

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