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Help & Documentation

Learn how to use the DigiCert DNS BIMI Validator to validate your email authentication and BIMI records.

The DigiCert DNS BIMI Validator is a comprehensive tool for validating BIMI (Brand Indicators for Message Identification) records and their prerequisites: SPF, DKIM, and DMARC.

📨 New to BIMI?

Learn about displaying your logo in email inboxes, the difference between free logo display and verified checkmarks, and how VMCs (Verified Mark Certificates) work.

Read the complete BIMI Guide →

Important: DNS Checks vs BIMI Header Checks

The "DNS Checks" section performs precursory validation of DNS records and files. Real BIMI verification can only be done by the receiving email server when inspecting actual email headers. Use the "BIMI Header Checks" section to validate real email headers for complete verification.

Learn more about validation types →

Quick Start:

  1. Select a validation type (Domain, Certificate, Logo, etc.)
  2. Enter the item to validate
  3. Click "Validate" to see results
  4. Expand results to see detailed information and logos

Need More Help?

• Check the API documentation at /api/docs

• Review the detailed validation checks guide for troubleshooting

• Consult the email headers guide for proper header extraction