Features
Email list verification Developer API Advanced reporting Enhanced Validation SDKs & Libraries MCP Server Recurring Validation Chrome Extension
Use Cases
Email Verification Bulk Email Verification Email List Cleaning Real-Time Form Validation SaaS Platforms Signup Validation Import Validation Automated List Hygiene
Integrations Pricing Docs Resources
ContactKnow Exactly Why Emails Failed
Not just "valid" or "invalid." Get detailed breakdowns, risk scores, and specific reason codes for every email so you can take action with confidence.
- search See the full picture.
- Validity percentage, risk breakdown, top failure reasons, domain analysis — all in one view. No digging through raw data or exporting to spreadsheets.
- monitoring Understand why, not just what.
- Every email gets a reason code: mailbox not found, domain inactive, catch-all detected, syntax error. Know exactly what's wrong so you can fix it or filter it out.
- layers One dashboard for everything.
- Results from list uploads, API calls, and integrations all show up in the same place. Track your verification history and monitor list health over time.
Total Emails
0
List Health
0%
0
Ok 0
Risky 0
Invalid 0
Unknown 0
Top Failure Reasons
Mailbox not found 0
Catch-all domain 0
Invalid syntax 0
Report breakdown
Everything you need at a glance
Every verification job generates a detailed report with actionable insights.
pie_chart
Validity breakdown
See your list at a glance: what percentage is valid, invalid, or risky. Know the health of your list before you send.
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Top failure reasons
Are most failures from dead mailboxes or inactive domains? Understanding patterns helps you fix collection problems at the source.
domain
Domain analysis
See which domains have the most invalids. Spot problematic corporate domains or identify data quality issues from specific sources.
Use cases
When detailed reporting matters
Detailed reports aren't just for audits. They help you make better decisions about your email program.
- troubleshootDiagnosing list problems
- High bounce rates? Reports show you exactly where the bad emails are coming from — specific forms, integrations, or data sources.
- handshakeVendor accountability
- Buying leads from third parties? Run their lists through Truelist first. Use reports to negotiate better rates or cut bad sources.
- trending_upTracking list health over time
- Verify quarterly and compare reports. Watch your list quality trends and catch decay before it hurts deliverability.
- assignmentCompliance documentation
- Need to prove you're maintaining list hygiene? Export reports as evidence for ESP compliance reviews or internal audits.
Detailed codes
Reason codes that tell you exactly what happened
Every email gets a specific reason code so you know exactly why it passed or failed.
| Code | Meaning | Action |
|---|---|---|
| mailbox_not_found | The mailbox doesn't exist on this domain | Remove from list |
| domain_inactive | The domain has no active mail server | Remove from list |
| catch_all | Domain accepts all addresses — can't verify | Use Enhanced Validation |
| disposable | Temporary email from services like Mailinator | Remove from list |
| role_based | Generic address like info@ or support@ | Flag for review |
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 webhook
Developer API Full featured, robust API 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?
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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.