Free BIMI Checker & Generator

BIMI (Brand Indicators for Message Identification) is a standard that allows organizations to display their brand logo next to authenticated emails in supporting email clients. When a recipient sees your logo, they know the email genuinely came from your organization.

BIMI requires: (1) A DMARC policy of p=quarantine or p=reject (p=none is not sufficient). (2) A logo in SVG Tiny 1.2 PS format hosted over HTTPS. (3) A VMC or CMC mark certificate for mailbox providers that require certificate-backed BIMI, including Gmail. Check readiness first so you do not buy a certificate while DMARC, SVG, or DNS is still broken.

The logo must be in SVG Tiny 1.2 Portable/Secure (SVG Tiny PS) format. This is a restricted subset of SVG that does not allow scripts, external references, or animations. The image should be square, and the file should be served over HTTPS. Many design tools can export to this format, or you can use an online converter.

It depends on which mailbox providers you care about. Gmail uses certificate-backed BIMI, so plan for a VMC or CMC if Gmail logo display matters. A VMC is stronger and can show Gmail's blue verified checkmark; a CMC can reduce the trademark barrier for some brands. Apple Mail, Yahoo Mail, and Fastmail may display BIMI logos without the same certificate requirement, so test free readiness before buying.

BIMI is designed to reward organizations with strong email authentication. Requiring DMARC with p=quarantine or p=reject ensures only properly authenticated senders can display their logo, preventing brand impersonation in phishing emails.

Often yes. Apple Mail, Yahoo Mail, and Fastmail can display BIMI logos without the same Gmail certificate-backed path. Gmail requires a VMC or CMC. This means you can test BIMI readiness at zero certificate cost with a correctly formatted SVG and a DMARC quarantine/reject policy.

Gmail requires a Verified Mark Certificate (VMC) or Common Mark Certificate (CMC) to show BIMI logos. Without one, Gmail will not display your logo even if the BIMI record is perfectly configured. Additionally, your DMARC must be set to p=quarantine or p=reject with full alignment. Use IntoDNS.AI to diagnose your BIMI setup.

A CMC (Common Mark Certificate) is a newer BIMI certificate path for logos that may not have a registered trademark. A VMC usually requires a registered trademark or government mark and can display Gmail's blue verified checkmark. Both still require certificate authority validation, and public pricing is commonly in the hundreds to low-thousands per year depending on issuer and term.

Basic BIMI without a mark certificate takes 30-60 minutes: prepare your SVG logo, host it over HTTPS, generate the DNS record here, add it to DNS, then wait for propagation. Getting a VMC or CMC usually takes longer because a certificate authority must validate the organization, logo, and domain.

A BIMI record is a TXT record at default._bimi.yourdomain.com. Without a certificate: v=BIMI1; l=https://example.com/logo.svg; a=. With a VMC or CMC: v=BIMI1; l=https://example.com/logo.svg; a=https://example.com/mark-certificate.pem. This generator builds the exact record to copy into DNS.