Free Email Validator - Powered by AWS SES

Verify Email Deliverability Instantly

Check if an email address is valid and can receive messages. 6 comprehensive checks including syntax, DNS, mailbox existence, and more.

Free: 1 validation per hour. Sign up for 100/month.

6 Comprehensive Validation Checks

Syntax Validation

Verifies email format follows RFC 5321 and RFC 5322 standards. Catches obvious errors like missing @ symbols or invalid characters.

DNS Verification

Checks if the domain exists and has valid MX (mail exchange) records configured for receiving emails.

Mailbox Existence

Predicts whether the specific mailbox exists and can actually receive messages. Most important check for deliverability.

Role Address Detection

Identifies role-based addresses (admin@, support@, info@) which typically have lower engagement rates.

Disposable Domain

Detects disposable or temporary email services that could negatively impact your sender reputation.

Random Pattern

Identifies randomly generated email addresses that are likely fake or created by bots.

Why Email Validation Matters

Invalid emails hurt your sender reputation and waste marketing budget

Without Email Validation

  • High bounce rates damage sender reputation
  • Waste money sending to invalid addresses
  • Risk being flagged as spam by ISPs
  • Lower email deliverability over time

With Email Validation

  • Maintain excellent sender reputation
  • Save money by only sending to real emails
  • Higher inbox placement rates
  • Better email campaign ROI

Frequently Asked Questions

What is email validation?

Email validation is the process of verifying that an email address is valid, deliverable, and safe to use. Our tool uses AWS SES Email Validation API to perform 6 comprehensive checks including syntax validation, DNS verification, mailbox existence check, role address detection, disposable domain check, and random pattern detection. This helps you maintain a clean email list and protect your sender reputation.

How accurate is this email validator?

Our validator is powered by AWS SES Email Validation API, one of the most accurate email validation services available. It provides a confidence verdict (HIGH, MEDIUM, LOW) based on all 6 validation checks. High confidence results are typically 95%+ accurate for deliverability prediction. However, no validator can be 100% accurate due to limitations like catch-all mailboxes and privacy-protected domains.

Is this email validator free?

Yes! You can validate 1 email per hour for free without creating an account. If you sign up for a free Sendmator account, you'll get 100 email validations per month with higher rate limits. Pro plans offer 5,000 validations/month, and Plus plans offer 50,000 validations/month. Check our pricing page for details.

What's the difference between syntax check and mailbox check?

Syntax check verifies the email follows proper formatting rules (like having an @ symbol), while mailbox check actually verifies if that specific email address exists and can receive messages. An email can have perfect syntax but still be invalid if the mailbox doesn't exist. Mailbox verification is the most important check for ensuring deliverability.

Why should I avoid role addresses?

Role addresses (like admin@, support@, info@) are generic mailboxes typically managed by multiple people or departments. They tend to have lower engagement rates, higher unsubscribe rates, and are more likely to mark emails as spam. While not always bad, they're generally less valuable for marketing campaigns than personal email addresses.

Can I validate emails in bulk?

Yes! Sign up for a free account to access our bulk validation API. You can validate up to 100 emails per request. We also offer CSV upload for larger lists and async validation for millions of contacts. Check our API documentation for details on bulk validation endpoints.

Ready to Clean Your Email List?

Sign up for free to get 100 email validations per month. No credit card required.