BIMI
also: Brand Indicators for Message Identification
BIMI (Brand Indicators for Message Identification) is an email authentication standard that allows organizations to display their verified logo in email clients, combining brand verification with email security protocols.
BIMI is an emerging email standard that enables companies to display a verified brand logo next to their emails in supporting email clients (like Gmail, Yahoo, and Apple Mail). It builds on existing email authentication mechanisms like DMARC, SPF, and DKIM to provide recipients with visual brand confirmation.
To implement BIMI, an organization must: publish a DMARC policy at p=reject or p=quarantine (strict enforcement), create a logo in SVG format, obtain a Verified Mark Certificate (VMC) from a certificate authority, and publish a BIMI DNS record (typically default._bimi.example.com) pointing to the logo and certificate.
Example BIMI DNS record:
default._bimi.example.com. IN TXT "v=BIMI1; l=https://example.com/logo.svg; a=https://example.com/vmc.pem;"BIMI helps reduce email phishing and spoofing by giving users a reliable visual indicator of authenticated, legitimate emails from trusted senders.