Frequently Asked Questions
Everything you need to know about VMC, CMC, BIMI, DMARC, logo requirements, pricing, and more.
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- Getting Started
- Logo & Trademark
- Requirements & Setup
- Email Authentication
- Compatibility & Security
- Validity & Renewal

Getting Started: Basics of VMC and CMC
What is a Verified Mark Certificate?
How does a Verified Mark Certificate work to display a brand logo?
What is a Common Mark Certificate (CMC)?
What’s the difference between a VMC and a CMC?
| Feature | Verified Mark Certificate (VMC) | Common Mark Certificate (CMC) |
|---|---|---|
| Logo Display in Email | Displays your official, trademarked brand logo next to emails | Displays just brand logo next to emails |
| Trademark Requirement | Mandatory – must own a registered trademark for your logo | Not required – any verified organization can qualify |
| Brand Recognition | Full brand exposure – recipients see your logo + blue tick in Gmail | Basic trust indicator – verifies sender authenticity with BIMI logo |
| Phishing Protection | Strong visual brand identity deters impersonation and BEC (Business Email Compromise) | Prevents spoofing, but less brand-specific protection |
| Setup Requirements | BIMI + DMARC compliance + trademark verification | BIMI + DMARC compliance only + logo active for 1+ year |
| Impact on Email Marketing | Higher open & click-through rates due to recognizable brand visuals | Moderate engagement boost – relies on trust symbol rather than logo |
| Cost & Investment | Higher initial cost but long-term brand ROI | Lower cost – quick path to verified sender status |
| Ideal For | Established businesses, global brands, enterprises with trademarked logos | SMBs, NGOs, startups, or organizations without trademark rights |
Why should I use a Mark Certificate – VMC or CMC?
Logo, Trademark & Eligibility
How can I verify if my logo is a registered trademark?
Can I get a Mark Certificate without a trademarked logo?
To get a Mark Certificate, your logo has to be a registered trademark from a recognized trademark office like USPTO, EUIPO, or JPO.
In case it is not trademarked, you will first have to file a trademark registration with the appropriate authority and wait for approval before requesting the VMC order. During this time you can implement SPF, DKIM and DMARC as measures of email verification without the VMC.
Which trademark offices are accepted for VMC Certificate?
To qualify for a VMC, your logo must be registered as a trademark with an approved intellectual property office. Currently recognized offices include:
- United States Patent and Trademark Office
- Canadian Intellectual Property Office
- European Union Intellectual Property Office
- UK Intellectual Property Office
- Deutsches Patent- und Markenamt
- Japan Trademark Office
- Spanish Patent and Trademark Office O.A.
- IP Australia
- Intellectual Property India
- Korean Intellectual Property Office
- Instituto Nacional da Propriedade Industrial
- French Institut National de la Propriete Industrielle
- Benelux Office for Intellectual Property
- Denmark Ministry of Culture
- Swedish Intellectual Property Office
- Swiss Federal Institute of Intellectual Property<
- Intellectual Property Office of New Zealand
Other trademark offices can be added in future as adoption of BIMI and VMC expands.
Do I require individual VMCs for each distinct logo?
Can I switch from CMC to VMC later?
Requirements & Technical Setup
What are the requirements to get a VMC?
The following requirements need to be fulfilled to get a Verified Mark Certificate:
- A registered trademark logo in SVG Tiny 1.2 (Tiny PS) format.
- DMARC policy set to p=quarantine or p=reject on your domain.
- A BIMI record that points your logo and VMC certificate to your domain.
If all these requirements are in place, you can buy Verified Mark Certificate and complete DigiCert’s validation process.
What format should the logo be uploaded in?
How long does it typically take to have a VMC (Verified Mark Certificate) issued?
It normally requires 5 to 7 business days to issue a VMC certificate. The faster the following steps are done, the quicker it can be issued:
- Domain and organization validation
- Trademark checking (because a registered trademark is necessary)
- BIMI Alignment of email logo
- Faster response to any CA (Certificate Authority) documentation requests
Delays can arise when extra documentation or corrections are required in the process of validation.
Do I need to include all my domains when applying for a Mark Certificate?
Can a single VMC work for several domains or subdomains?
What should I do after receiving my VMC or CMC?
Email Authentication
What is BIMI? Why is it Important?
Can I use a VMC or CMC certificate without BIMI?
Is BIMI required by Google?
How does SPF help authenticate senders and prevent spoofing?
How does DKIM work in email authentication?
What is DMARC, and why is it Important?
Why is DMARC required for a VMC or CMC?
How much time does it take to get DMARC enforcement?
DMARC enforcement can differ by environment. If the organization has one sending domain, where both SPF and DKIM have already been configured, it is possible to progress the enforcement policy (p=quarantine or p=reject) within days or weeks.
In larger orgs that have multiple domains, subdomains and more third-party senders, it might take months. This is because every legitimate source of emails should be identified, authenticated, and aligned prior to enforcement. Consulting with an expert or trusted provider when working with DMARC can help simplify and prevent delivery issues.