Free Email Authentication Tools

Free tools to help you implement and manage SPF, DKIM, and DMARC for your domains. Protect your email infrastructure and improve deliverability.

SPF Record Generator

Create a properly formatted SPF record for your domain to specify authorized email senders and prevent spoofing.

Interactive mechanism builder
Common presets
Best practices guidance
One-click copying
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SPF Record Verification

Validate your SPF record format and configuration to ensure it's properly formatted and effective.

Syntax validation
Configuration analysis
Best practice checks
Detailed feedback
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SPF Record Lookup

Look up and analyze SPF records for any domain. Verify your email authentication configuration and identify potential issues.

Instant DNS lookup
Record analysis
Configuration validation
Best practices check
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DMARC Record Generator

Create a properly formatted DMARC record for your domain with customizable policy settings and reporting options.

Interactive policy configuration
Email reporting setup
Best practices guidance
One-click copying
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DKIM Record Generator

Generate DKIM DNS records for your domain to add digital signatures to your emails and improve deliverability.

Key type selection
Hash algorithm configuration
Selector management
Best practices guidance
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DKIM Record Verification

Validate your DKIM record format and configuration to ensure it's properly formatted and effective.

Syntax validation
Security analysis
Best practice checks
Detailed feedback
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DKIM Record Lookup

Check DKIM records for any domain and analyze their email authentication configuration.

Instant DNS lookup
Record validation
Configuration analysis
Troubleshooting help
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DMARC Record Lookup

Check if a domain has DMARC configured and analyze its email security settings.

Instant DNS lookup
Policy analysis
Configuration details
Security assessment
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DMARC Record Verification

Validate your DMARC record format and configuration to ensure it's properly formatted and effective.

Syntax validation
Configuration analysis
Best practice checks
Detailed feedback
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Why Use DMARC?

Protect Your Domain

  • Prevent email spoofing and phishing attacks
  • Maintain brand reputation
  • Improve email deliverability
  • Get visibility into email authentication

Implementation Benefits

  • Gradual deployment with monitoring
  • Detailed reporting and insights
  • Better control over email infrastructure
  • Enhanced security posture

Getting Started

  1. Use the DMARC Record Generator to create your policy
  2. Implement the record in your DNS settings
  3. Use the DMARC Record Lookup to verify deployment
  4. Monitor reports and adjust as needed