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Domain Reputation Checker for Cold Email

Check if your domain is trusted before launching cold email campaigns

Check Your Domain's Email Reputation and if its Blacklisted

Enter up to 100 domains. Separate with commas, spaces, or new lines.

What This Tool Checks

🎯 Deliverability Factors

  • • Overall trust score (positive = inbox ready)
  • • Blacklist status across major providers
  • • Domain age and registration details
  • • Spam associations and abuse reports

📊 Reputation Dimensions

  • • Human: Manual review results
  • • Identity: Email authentication
  • • Infrastructure: Hosting quality
  • • Malware: Security threats
  • • SMTP: Email sending history

Quick Tips

  • ✅ Score 0+ = Ready for cold email
  • ✅ Score -1 to -2 (infra only) = Ready (shared hosting OK)
  • ⚠️ Score -1 to -2 (other issues) = Needs warmup
  • ❌ Score -3 or below = High risk, fix issues first
  • 🚫 Blacklisted = Emails will be blocked
  • 💡 Check up to 100 domains at once

Important-Emails Does This Automatically

When you use Important-Emails for cold email, we continuously monitor domain reputation across all dimensions, alert you to issues before they impact deliverability, and optimize your sending domains for success.

Learn about hidden reputation killersGet Started with Important-Emails