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Email Validation

Clean your list before bad addresses damage your reputation.

Two-layer email validation catches invalid addresses before they generate bounces. Syntax and MX checks run free on every email. The paid tier adds SMTP-level verification for maximum accuracy.

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Free: Syntax and MX Validation

Every email address is automatically checked for valid syntax and a reachable mail server (MX record). This catches typos, disposable domains, and non-existent providers before they ever enter your list.

  • RFC-compliant email syntax validation
  • MX record lookup to verify the domain accepts email
  • Runs automatically on every subscriber — no addon required
  • Catches common typos and disposable email domains

Paid: SMTP-Level Verification

Go deeper with SMTP-level verification that connects to the recipient mail server and checks whether the specific mailbox exists. Catches catch-all domains, full inboxes, and disabled accounts that MX checks miss.

Paid: SMTP-Level Verification
SMTP handshake verification against the recipient mail server
Detects full inboxes, disabled accounts, and catch-all domains
25,000 validations per month included
From $9/mo — only runs when Layer 1 passes (saves costs)

Bulk Validation

Validate your entire subscriber list in bulk before a campaign. Upload a CSV or validate a list directly — results show which addresses are valid, risky, or invalid so you can clean up before hitting send.

Bulk Validation
Validate existing lists with one click
CSV upload for bulk pre-import validation
Color-coded results: valid, risky, and invalid
Auto-suppress invalid addresses after validation

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Start using Email Validation today — it's free

No credit card required. Get started in minutes.

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