Validate Any Email Domain — Check DNS, MX Records & More
Verify that email domains are valid and properly configured to receive emails. Catch typos, dead domains, and configuration issues.
Enter a domain to validate its DNS, MX records, and mail server health
Enter a domain above and click Check to see results.
Our domain checker performs comprehensive validation across 6 critical dimensions.
Verifies the domain is registered and valid.
Checks if DNS properly resolves the domain.
Verifies mail server records are configured.
Tests if mail servers are reachable.
Identifies newly registered or old domains.
Detects free vs business domain types.
Invalid domains create serious business problems.
Sending to dead or parked domains wastes email credits and damages sender reputation through bounces.
Email typos like gmial.com instead of gmail.com result in bounced signups and lost customers.
Parked or misconfigured domains often signal spam signups, account fraud, or abuse attempts.
Very new domains have higher abuse rates. Domain age helps identify suspicious signups.
Our domain checker catches these issues automatically.
We identify common misspellings and suggest corrections.
Detects domains that have been allowed to expire and no longer accept email.
Identifies domains with broken DNS or missing MX records preventing email delivery.
Detects placeholder/parked domains with no legitimate email configuration.
Perfect for anyone working with email data.
Validate domains before email campaigns to improve deliverability and reduce bounces.
Clean prospect lists and verify domain legitimacy before outreach campaigns.
Validate customer email domains during signup and form submission.
Monitor and maintain email domain health and configuration integrity.
Upgrade to MailRook's complete email verification suite for bulk checking, API access, and advanced features.
Try our other free email validation tools.
Check if email domains are valid and properly configured. No signup required. Unlimited free checks.