BIMI Setup: Show Your Logo in Gmail

What Is BIMI#

Brand Indicators for Message Identification (BIMI) allows mail clients to display your company logo next to authenticated emails. Gmail, Apple Mail, and Yahoo Mail support BIMI. It requires a valid DMARC policy of p=quarantine or p=reject.

Prerequisites#

• SPF record passing
• DKIM signing enabled
• DMARC at p=quarantine or p=reject with at least 30 days of clean history
• A Verified Mark Certificate (VMC) from DigiCert or Entrust (required for Gmail)

SVG Logo Requirements#

Gmail requires a Scalable Vector Graphic (SVG Tiny PS) format:

• Square aspect ratio
• No external references or scripts
• Under 32 KB file size
• Hosted at a public HTTPS URL

Validate your SVG at validator.bimigroup.org.

DNS Record Format#

Add a TXT record to your DNS:

Host:  default._bimi.yourdomain.com
Type:  TXT
Value: v=BIMI1; l=https://yourdomain.com/logo.svg; a=https://yourdomain.com/vmc.pem

The l= field is your SVG URL. The a= field is your VMC certificate URL (required for Gmail — optional for others).

Checking BIMI#

Use dig to confirm propagation:

dig TXT default._bimi.yourdomain.com

Gmail may take 1–2 weeks to start showing the logo after all checks pass. Use MXToolbox BIMI lookup to verify your record before testing in Gmail.