Free Tool · No signup required

Free Email Deliverability Checker Tool

Run quick checks on your domain and inbox configuration. Test SPF, DKIM, DMARC records, blacklist status, and more to ensure optimal email deliverability.

Health snapshot

Why Email Deliverability Checking Matters

Email deliverability depends on many factors working together correctly. Our deliverability checker tests all critical components of your email setup to identify issues before they affect your campaigns and help you maintain optimal inbox placement rates.

  • Identify configuration issues before they impact your campaigns
  • Verify authentication setup with SPF, DKIM, and DMARC checks
  • Detect blacklist problems that could block your emails
  • Improve inbox placement by fixing deliverability issues
  • Maintain domain health with regular configuration checks

How Email Deliverability Checking Works

Our deliverability checker performs comprehensive tests across multiple factors:

  1. DNS record validation: Checks SPF, DKIM, DMARC, and MX records for proper configuration
  2. Blacklist scanning: Tests your domain against major email blacklists
  3. Authentication alignment: Verifies that SPF and DKIM align with your sending domain
  4. DNS propagation: Confirms that DNS changes have propagated globally
  5. Configuration analysis: Identifies misconfigurations and provides specific recommendations

The checker provides a comprehensive deliverability score and actionable recommendations to improve your email setup.

Email Deliverability Checker FAQs

Automate Deliverability Monitoring for All Domains

Get continuous deliverability monitoring and automatic issue detection for all your sending domains with SuperSend. We check SPF, DKIM, DMARC, blacklists, and more to ensure optimal deliverability.