BIMI (Brand Indicators for Message Identification) is an email standard that displays your brand logo next to your messages in the inbox. Supported by Gmail, Yahoo Mail, Apple Mail, and Fastmail. BIMI requires DMARC p=quarantine or p=reject at 100%, an SVG Tiny PS logo at a public HTTPS URL, and optionally a Verified Mark Certificate (VMC) for Gmail logo display.

Do I need a VMC for BIMI to work?

A Verified Mark Certificate (VMC) is required for Gmail to display your BIMI logo. Yahoo Mail and Apple Mail support BIMI without a VMC (using just the l= SVG URL). VMCs are issued by Entrust or DigiCert and require a registered trademark for the logo. The cost is approximately $1,000-$1,500 per year.

Why is my BIMI not showing in Gmail?

Common causes: your DMARC is not p=reject or p=quarantine at pct=100, your SVG is not in SVG Tiny PS format, your VMC is missing or expired, the l= URL is not publicly accessible over HTTPS, or Gmail has not yet indexed your BIMI record (can take several weeks for new deployments).

BIMI Record Checker — Check Brand Indicators for Message Identification

BIMI Record Checker

Check if a domain has BIMI configured. BIMI displays your logo in Gmail, Yahoo, and Apple Mail inboxes for authenticated senders with DMARC enforcement.

Domain

BIMI requirements

DMARC policy of p=quarantine or p=reject at pct=100
SVG Tiny PS logo hosted at HTTPS URL
BIMI TXT record at default._bimi.yourdomain.com
Verified Mark Certificate (VMC) required for Gmail (optional for others)

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DKIM Checker DKIM Key Generator SPF Validator SPF Record Builder DMARC Checker DMARC Generator Blacklist Checker Header Analyzer MX Lookup PTR Lookup Email Validator TXT Record Lookup BIMI Checker Subject Line Tester Bounce Rate Calc List Hygiene Calc Domain Health Check

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BIMI Record Checker: Verify Your Brand Logo Configuration

BIMI (Brand Indicators for Message Identification) is the newest layer of email authentication — it rewards senders who have properly implemented DMARC enforcement with the ability to display their logo in the inbox. When configured correctly, your brand logo appears next to your messages in Gmail and Yahoo before recipients even open them, increasing recognition and trust.

BIMI Requirements Checklist

DMARC p=quarantine or p=reject at pct=100 — The foundation. BIMI is the reward for full DMARC enforcement. Use the DMARC Checker to verify your policy is correctly configured.
SVG Tiny PS format logo — Standard SVG files don't work. The logo must conform to SVG Tiny PS (portable/secure) specification. Many design tools can export this format, and online converters exist.
Logo hosted at HTTPS URL — The l= tag must point to a publicly accessible HTTPS URL. The file must be served with appropriate MIME type.
VMC for Gmail — A Verified Mark Certificate issued by Entrust or DigiCert, requiring a registered trademark. Required for Gmail logo display; optional for Yahoo, Apple, and Fastmail.

The Business Case for BIMI

Research from multiple senders has shown 10-15% increases in open rates after BIMI implementation, attributed to increased brand recognition in the inbox. For brands with strong visual identity, the logo appearing in the inbox provides a trust signal that differentiates legitimate mail from phishing attempts. BIMI also indirectly improves deliverability by requiring full DMARC enforcement, which protects your domain from spoofing.

BIMI Record Checker

BIMI Record Checker

BIMI requirements

BIMI Record Checker: Verify Your Brand Logo Configuration

BIMI Requirements Checklist

The Business Case for BIMI

INFRASTRUCTURE

OPERATIONAL NOTES

The Hidden Cost of Retry Pressure in High-Volume SMTP Systems

Inbox Placement Is a Lagging Indicator

What Breaks First When Volume Increases Too Fast

Why Shared IP Pools Fail at Scale

Separating Cold, Bulk, and Transactional Traffic at the Infrastructure Level

When NOT to Warm an IP

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