Stop Bad Emails Before They Hit Your Database

Verify emails in real-time on signup forms, checkout pages, and lead capture flows. Block fake addresses, typos, and disposable emails before they become your problem.

bolt Responses in under 200ms.: Fast enough for inline form validation. Users get instant feedback, and you never store an invalid email in the first place.
code REST or GraphQL — your choice.: Use whatever fits your stack. Both return the same detailed results: validity status, risk score, reason codes, and whether it's a disposable or role-based address.
description Ship in an afternoon.: Full OpenAPI spec, copy-paste code samples, and webhook support for async flows. Your devs will thank you.

Developer API

Your API Keys

Key	Last used
tl_live_sk_a1b2...f6g7	2 hours ago

Quick Example

Response

{
  "email": "test@example.com",
  "status": "ok",
  "score": 95
}

Use cases

Where real-time verification shines

Stop bad data at the source. Verify emails the moment they enter your system.

person_add Signup forms: Block fake emails, typos, and disposable addresses before they hit your database. Give users instant feedback so they can correct mistakes.
shopping_cart Checkout pages: Ensure order confirmations and receipts actually reach customers. Invalid emails mean lost revenue from failed communication.
contact_page Lead capture: Verify leads as they come in from landing pages, webinars, or gated content. Sales teams only get real prospects to follow up with.
sync CRM integrations: Validate emails before they sync to your CRM. Keep your Salesforce, HubSpot, or Pipedrive data clean from the start.

Developer-friendly

Built for developers

Everything you need to integrate email verification into your stack.

api

REST & GraphQL

Use whichever API style fits your stack. Both return identical verification results with full status details.

timer

Under 200ms

Fast enough for inline form validation. Users get instant feedback without waiting for page reloads.

webhook

Webhooks

Get notified when bulk verification jobs complete. Perfect for async workflows and background processing.

SDKs & Libraries

Official SDKs for every stack

Skip the boilerplate. Install an SDK and start verifying emails in minutes.

JavaScript / Node.js Python Ruby PHP Go Java .NET / C# WordPress

Plus n8n and MCP Server for AI assistants.

rocket_launch

Try the API free

100 validations + 10 enhanced credits to test REST and GraphQL endpoints. No credit card required.

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Response data

What you get in every response

Rich verification data so you can make smart decisions about each email.

check_circle Validity status: Clear valid/invalid/risky classification so you know exactly whether to accept, reject, or flag the email.
tag Reason codes: Specific codes like "mailbox_not_found" or "domain_inactive" tell you exactly why an email failed verification.
flag Risk flags: Disposable email, role-based address, catch-all domain — get flags for common issues so you can set your own rules.
edit Typo suggestions: Catch common typos like "gmial.com" and get corrected suggestions to show users — reducing friction and saving leads.

Verification Details

Weed out bad emails before you send

Protect your brand by removing emails that are likely to bounce, which could harm your sender reputation.

SMTP Validation: Validate domains and query SMTP servers to remove invalid, inactive, parked domains, and invalid accounts.
Spam trap checking: Clean spam traps to improve your reputation score and avoid being identified as a spammer.
DNS record checking: Ensure that an email's DNS and MX records are valid.
Disposable emails: Identify and remove disposable email domains from your lists.
Duplicates removal: Identify and remove duplicate emails from your lists.
Accept-all domains: Spot and flag domains that accept any email addresses.

Explore more features

Discover other powerful capabilities Truelist offers.

verified

Email List Verification Quickly validate email lists before sending

monitoring

Advanced Reporting Industry-leading analytics and insights

neurology

Enhanced Validation Maximum accuracy with advanced heuristics

extension

Chrome Extension Verify emails on any webpage

sync

Recurring Validation Keep your lists clean automatically

Ready to put Truelist
to the test?

Find out if Truelist is right for you in under 10 minutes.

Free plan available. No credit card required.

FAQ

Frequently asked questions

Can't find the answer you're looking for? Reach out to our customer support team.

What is Truelist?: Truelist is a cutting-edge email validation service designed to improve the accuracy and deliverability of your email campaigns by verifying email addresses in real-time and cleaning email lists.
How does Truelist validate email addresses?: Our service uses advanced algorithms and real-time checking to validate email addresses. This includes checking for format correctness, domain validity, and whether the email address is active and accepting mails.
What are the benefits of using Truelist for email validation?: By using Truelist, you can reduce bounce rates, avoid spam traps, improve your sender reputation, and ultimately increase the effectiveness of your email marketing efforts.
Is it really unlimited?: Yes, Truelist offers unlimited free email validation in our platform.
Is Truelist compliant with data privacy regulations like GDPR?: Yes, we prioritize data security and compliance with global privacy laws, including GDPR. Truelist is SOC 2 Type II certified, meaning our security controls are independently audited and verified. We ensure that all data is handled securely and with the utmost respect for privacy. Learn more about our security practices.
Does Truelist have an API?: Yes, we have a powerful API that allows you to integrate Truelist into your own applications and services. You can find our API documentation here.