Free BIMI Record Checker

BIMI Checker

Enter any domain to check its BIMI record. We validate your logo format, inspect your VMC certificate, check DMARC prerequisites, and show you how your brand will appear in supported inboxes.

What Your Results Mean

Understanding Your BIMI Check

Here's what each result means and what to do next.

BIMI Pass

Your BIMI record is valid and your logo is ready to display

A passing result means your BIMI record is published correctly, your logo meets the SVG Tiny PS format requirements, and your DMARC policy is set to quarantine or reject. Supported inbox providers can now display your brand logo next to authenticated messages. If you also have a VMC, Gmail will display your logo as well.

Valid BIMI record found
Logo is in SVG Tiny PS format
DMARC enforcement prerequisite met
Logo is publicly accessible via HTTPS

Verify Your DMARC

Common BIMI Issues

Common BIMI Problems and How to Fix Them

These are the BIMI problems we see most often. If your check flagged any of these, here's what they mean and how to fix them.

No BIMI Record Found

No logo can be displayed

Without a BIMI record in DNS, inbox providers have no way to find your brand logo. BIMI requires a TXT record published at default._bimi.yourdomain.com that contains a URL pointing to your SVG logo file. Until that record exists, no provider will display your logo regardless of how well your email authentication is configured.

No TXT record at default._bimi.yourdomain.comInbox providers have no logo to displayFix: publish a BIMI TXT record with your logo URL

How to set up BIMI (Coming Soon)

DMARC Not Enforcing

BIMI's most common blocker

BIMI is built on top of DMARC enforcement. If your DMARC policy is set to p=none (or missing entirely), no inbox provider will display your logo. This is the single most common reason BIMI fails. You need to progress your DMARC policy to at least p=quarantine before BIMI will work. Use your DMARC reports to identify all senders and align them before tightening the policy.

BIMI requires DMARC at p=quarantine or p=rejectp=none does not satisfy the BIMI prerequisiteFix: progress your DMARC policy to at least quarantine

Check your DMARC policy

Wrong SVG Format

Standard SVG won't work

BIMI requires logos in SVG Tiny PS (Portable/Secure) format, which is a restricted subset of SVG designed for security. Standard SVG files exported from tools like Illustrator or Figma will not work. The image must be square, use a solid background, contain no scripts or external references, and be hosted on an HTTPS URL. Many BIMI failures come down to a logo file that looks fine in a browser but doesn't meet the Tiny PS specification.

Standard SVG files are rejected by inbox providersLogo must be SVG Tiny PS with no scripts or external refsFix: convert your logo to SVG Tiny PS format

SVG requirements for BIMI (Coming Soon)

Missing VMC Certificate

Gmail won't display your logo without one

A Verified Mark Certificate (VMC) is a digital certificate that proves you own the trademarked logo in your BIMI record. Gmail requires a VMC before it will display your brand logo. Yahoo Mail, Apple Mail, and Fastmail do not require a VMC. If you don't have a registered trademark, you cannot obtain a VMC. In that case, your logo will still appear in non-Gmail clients that support BIMI.

Gmail requires a VMC to display your logoVMCs are issued by DigiCert or Entrust for trademarked logosFix: obtain a VMC or accept that Gmail won't show your logo

Learn about VMC certificates (Coming Soon)

Why It Matters

Why BIMI Matters for Your Business

BIMI is where email security meets brand visibility. It turns your DMARC enforcement into a visual trust signal that recipients see in every inbox.

Your Emails Look Generic in the Inbox

Without BIMI, your emails show a generic initial or placeholder icon next to the sender name. In a crowded inbox, that makes your messages easy to overlook. BIMI lets you replace that placeholder with your actual brand logo, so recipients recognize your emails instantly.

Recipients Can't Tell Real Emails from Fakes

Phishing emails that impersonate your brand look identical to your real messages in the inbox. BIMI provides a visual trust signal by displaying a verified brand logo that attackers cannot replicate. When your logo appears, recipients know the message is genuinely from you.

You're Missing a Competitive Advantage

Brands that adopt BIMI early stand out visually in every inbox that supports it. As more providers adopt the standard, having your logo displayed becomes a baseline expectation. Getting BIMI configured now means you're already ahead when Outlook and other providers add support.

Your DMARC Investment Goes Unnoticed

You put in the work to reach DMARC enforcement, but recipients don't see that effort. BIMI is the visible payoff for your email authentication investment. It turns an invisible security layer into a brand asset that recipients see with every message.

See How iO DMARC Helps

Complete Protocol Coverage

Check Your Full Email Authentication with iO™ DMARC

SPF is one piece of the puzzle. Use these tools to check the rest of your email authentication stack.

SPF

SPF Checker

Validate your SPF record and confirm which servers are authorized to send on your behalf. SPF is one of the authentication layers BIMI depends on.

Check SPF

DKIM

DKIM Checker

Verify your DKIM signature to make sure outgoing emails are cryptographically signed. DKIM alignment is required for the DMARC policy that BIMI needs.

Check DKIM

DMARC

DMARC Checker

Check your DMARC policy and alignment. BIMI requires a DMARC policy of quarantine or reject, this tool confirms you meet that threshold.

Check DMARC

MTA-STS

MTA-STS Checker

Check whether your domain enforces encrypted email delivery. MTA-STS ensures your authenticated, BIMI-branded messages are protected in transit.

Check MTA-STS

TLS-RPT

TLS-RPT Checker

Verify your TLS reporting setup. TLS-RPT alerts you when sending servers fail to establish secure connections with your domain, so you catch delivery issues early.

Check TLS-RPT

Email Audit

Email Authentication Audit

Get a complete picture of your SPF, DKIM, DMARC, BIMI, and MTA-STS configuration in one report. See what’s working, what’s broken, and what to fix first.

Run Free Audit

Ready to secure your email domain?

BIMI is the reward for getting authentication right. iO™ DMARC manages the entire stack that makes it possible.

Get Started with iO™ DMARC Schedule a Demo

Learn More

Learn About BIMI

Want to go deeper? These guides explain how BIMI works, what the prerequisites are, and how to get your brand logo displaying in supported inboxes.

What Is BIMI and How to Set It Up

A complete guide to BIMI: what it is, how it works, the prerequisites you need, and step-by-step instructions for publishing your BIMI record and getting your logo into inboxes.

Read the guide (Coming Soon)

Check Your DMARC Prerequisite

BIMI requires DMARC enforcement at p=quarantine or p=reject. Use our free DMARC checker to confirm your policy meets the prerequisite before setting up BIMI.

Check your DMARC

Managed BIMI Setup

Don't want to manage BIMI yourself? Our iO DMARC service handles logo conversion, VMC hosting, DNS configuration, and ongoing monitoring for you.

Learn more

Explore iO DMARC

Ready to Get Your Brand Logo in the Inbox?

Found issues with your BIMI record? Or just want someone to handle logo setup and email authentication so you don't have to think about it? Let's talk.

Ready to Put Your Logo in the Inbox?

iO™ DMARC converts your logo to SVG Tiny PS, hosts it for you, generates the BIMI record, and can even host your Verified Mark Certificate, so your brand shows up next to every authenticated email.

See BIMI with iO™ DMARC

Free BIMI record review

Logo conversion to SVG Tiny PS

VMC hosting and DNS configuration

Full DMARC enforcement included