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What is a Common Mark Certificate (CMC)? | Complete Guide | Wikicert
Learn what a Common Mark Certificate (CMC) is, how it works with BIMI, and how businesses without registered trademarks can display their verified brand logo in supported email inboxes.
A Common Mark Certificate (CMC) is a digital certificate that allows eligible businesses to display their verified company logo in supported email inboxes—even if their logo is not a registered trademark.
Developed as an alternative to the Verified Mark Certificate (VMC), the CMC helps organizations strengthen email trust, improve brand recognition, and support secure email authentication using BIMI (Brand Indicators for Message Identification).
For many businesses, a CMC offers a simpler path to branded email visibility while maintaining high security standards.
A Common Mark Certificate helps organizations:
• Display their verified company logo in supported email inboxes
• Increase customer trust
• Improve brand recognition
• Support BIMI implementation
• Reduce phishing and impersonation risks
• Strengthen professional email communications
A Common Mark Certificate works alongside BIMI and DMARC.
Before a company logo can appear inside supported inboxes, the organization must:
• Configure DMARC correctly
• Publish a BIMI record
• Verify ownership of its company logo
• Complete organization validation
Once approved, supported email providers can display the verified logo next to authenticated emails.
A CMC is ideal for:
• Small businesses
• Growing brands
• SaaS companies
• Marketing agencies
• Technology companies
• E-commerce businesses
• Organizations without registered trademarks
A Common Mark Certificate provides several important advantages:
• Professional email branding
• Improved customer confidence
• Stronger email recognition
• Supports BIMI implementation
• Helps reduce phishing attacks
• Simpler qualification than a VMC
To obtain a Common Mark Certificate, businesses typically need:
• Organization identity verification
• Ownership of the company logo
• Proper DMARC configuration
• BIMI implementation
Unlike a VMC, a registered trademark is generally not required, making CMC more accessible for many organizations.
No.
SSL Certificates secure websites.
Common Mark Certificates help verify brand identity within email communications.
Yes.
A Common Mark Certificate works together with BIMI to display your verified logo.
No.
Unlike a Verified Mark Certificate, a Common Mark Certificate is designed for organizations that do not have a registered trademark.
Organizations that want branded email visibility but do not yet qualify for a Verified Mark Certificate.
If your business already owns a registered trademark, a Verified Mark Certificate (VMC) may be the best option.
If you don't have a registered trademark but still want to display your verified company logo in supported inboxes, a Common Mark Certificate (CMC) can provide an excellent alternative.
Choosing the right certificate depends on your organization's branding, compliance requirements, and long-term goals.
Not sure whether a Common Mark Certificate (CMC) or Verified Mark Certificate (VMC) is the right choice for your business?
Contact Wikicert, and our boutique certificate specialists will help you evaluate your eligibility, configure BIMI and DMARC, and recommend the best certificate for your organization without any obligation.
