BIMI
Email MarketingAlso: Brand Indicators for Message Identification
Quick definition
BIMI stands for Brand Indicators for Message Identification. It's a standard that lets your verified logo appear next to your emails in supported inboxes like Gmail. To qualify, your domain needs strict DMARC (Domain-based Message Authentication, Reporting and Conformance) enforcement and, for most inbox providers, a Verified Mark Certificate.
How it varies across Australia
Adoption of BIMI among Australian senders still lags larger US and European brands, mainly because DMARC enforcement, the prerequisite, isn't in place at most small and mid-sized businesses. Sectors with high email volume like ecommerce and finance are ahead of the curve.
See email deliverability benchmarks across Australian industries →What it actually means
BIMI is the small logo you sometimes see sitting next to a sender's name in Gmail or Yahoo. It works like a verified badge on social media. The inbox provider checks that your domain passes strict authentication before it will show anything.
That authentication is DMARC, and it has to be set to enforcement, not just monitoring. DMARC in turn depends on SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) being correctly configured. BIMI sits on top of all three. Skip the foundation and the logo never appears, no matter how good your artwork is.
Most providers also require a Verified Mark Certificate, which is effectively a legal proof of trademark ownership tied to your logo. That step costs money and time, and it's the reason BIMI adoption is slower than DMARC adoption on its own.
The upside isn't rankings or deliverability directly. It's trust. A recognisable logo in a crowded inbox nudges open rate and reduces the chance a legitimate email gets ignored as spam. It won't fix a sender reputation problem, and it won't rescue a list full of disengaged subscribers.
BIMI is the reward for authentication work you should already be doing, not a shortcut around it.
How it shows up
BIMI shows up as a small square or circular logo beside your sender name in Gmail's inbox list and in the opened email header. It only appears in providers that support the standard, and only once DMARC is at enforcement (policy of quarantine or reject, not just monitoring). If your DMARC record is still set to monitor only, no certificate or logo file will make the badge appear.
The Australian context
Many Australian businesses run email through third-party platforms and never touch their own DMARC record, which means enforcement quietly stays off for years. That's fine for deliverability in the short term but it blocks BIMI entirely. If you're using multiple sending sources, marketing platform, transactional system, sales tools, each one needs to be accounted for in SPF and DKIM before DMARC enforcement is safe to turn on.
Where people get this wrong
Related terms
Common questions
Do I need DMARC before I can get BIMI?
Yes. BIMI has no function without DMARC set to enforcement, meaning a policy of quarantine or reject. Inbox providers won't display your logo for a domain that's only monitoring authentication, no matter what certificate you buy.
Does BIMI improve email deliverability?
Not directly. BIMI is a trust signal that can lift open rate once your mail is already landing in the inbox. The authentication work underneath it, SPF, DKIM and DMARC, is what actually improves deliverability.
What is a Verified Mark Certificate and do I need one?
It's a certificate that proves legal ownership of the logo you want displayed, issued by a small number of approved providers. Gmail currently requires one for the logo to show. Some other inbox providers don't, so requirements vary by where your audience reads email.
How long does it take to set up BIMI?
The technical part, publishing a BIMI record, takes minutes. The real timeline is getting DMARC safely to enforcement, which usually takes weeks of monitoring first, plus the certificate approval process if your target inbox requires one.
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About New Rebellion
New Rebellion is a marketing intelligence consultancy. We build tools, score Australian businesses on how their marketing actually performs, and publish Debrief every day. This dictionary is part of how we work in the open.
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