01~10 sec
You forward it.
Paste the mailbox above into the test-send field in Beehiiv, Kit, Substack, Mailchimp — or your own inbox. Hit go. We never see your subscriber list.
Will your logo show in Gmail?
BIMI puts your logo beside your name in the inbox. More than half the domains that set it up get nothing and never find out. See yours in a mocked inbox row.
The part nobody mentions
Most BIMI setups don't work — and the owner never finds out
A missing logo is only visible in other people's inboxes. You can publish a perfect-looking record, pay for a certificate, and get nothing back, with no error anywhere to tell you. When URIports swept the top million domains in January 2025, 5,174 of the 9,661 domains publishing BIMI — 53.6% — had at least one error. A year earlier it was 41.8%, so the failure rate is growing faster than adoption.
27.5% of failures
The SVG is the wrong kind
BIMI needs the SVG Tiny PS profile. A logo exported from Illustrator or Figma is not it, and looks completely normal in a browser.
13.3% of failures
DMARC is still at p=none
No mailbox provider shows a logo unless DMARC is at quarantine or reject. The BIMI record itself validates perfectly while nothing displays.
11.7% of failures
The logo can't be downloaded
The URL 404s, sits behind a redirect, or was moved during a site rebuild. Nothing warns you when it breaks.
8.2% of failures
The certificate expired
Mark certificates renew annually. When one lapses the logo simply stops appearing, quietly, on every message you send.
Figures from URIports' 2025 analysis of BIMI across the top one million domains. We report their numbers rather than our own — we have not run that sweep.
Four things have to be true at once
BIMI is not one setting. It is a chain, and the logo only appears when every link holds. The checker above tests all four and tells you which one is missing.
- DMARC at enforcementp=quarantine or p=reject, applied to the domain you actually send from. This is the step most people are stuck on, and it is worth doing whether or not you ever add a logo.
- A logo in SVG Tiny PSSquare, with a title element, no scripts, no embedded images, under 32 KB. Your designer's export will need converting.
- A mark certificateGmail will not display a logo without one. This is the only part that costs money.
- The BIMI DNS recordA TXT record at default._bimi pointing at the logo and the certificate. The easy part, and the last one.
You no longer need a trademark
This was the blocker for every small brand. A Verified Mark Certificate requires a registered trademark, which is slow and expensive. Since September 2024 Google also accepts a Common Mark Certificate, which asks only that your logo has been in continuous public use for a year — verifiable from web archives.
Common Mark Certificate
from about $649 / year
No trademark needed. Gets your logo displayed in Gmail. This is the one most small senders want.
Verified Mark Certificate
from about $1,350 / year
Requires a registered trademark. Same logo, plus Gmail's blue verified checkmark, which is tied to the trademark.
We don't sell certificates and we don't earn anything if you buy one. Check the other three steps here first — if your DMARC is at p=none, a certificate buys you nothing yet.
The logo is the visible half. The rest decides whether you arrive.
BIMI does not change how filters treat your mail — we are not going to claim a lift we have not measured. What it requires does matter. Forward one real email and we will tell you how it actually authenticated on arrival, where it landed, and what to fix.
Free check
The logo is the visible half. Forward an email for the rest.
BIMI decides what your subscribers see. Authentication decides whether they see anything. Forward one email — verdict in 30 seconds.
Forward a test email here
Report in ~30s · no login · one-time address, we never see your listNot ready? See a sample report first.
Example resultmailtester.ai/report/live
Deliverability62/ 100
Verdict
Risky — don't send yet
Where it lands
Primary 38% · Promotions 41% · Spam 21%
3 quick fixes · first: subject emoji trips Gmail's promo filter+2 more
Wait — which one are you looking for?
Two different tests.
Most people mix them up.
If you've ever searched "email tester," half the results check whether the address is valid. We do the other thing — whether the email itself will reach the inbox once you press send.
Address validity
Does this address exist?
You upload a CSV of subscribers. The tool tells you which addresses bounce. Great for cleaning a stale list before a re-engagement send.
Validates email addresses
Catches typos and dead domains
Per-address pricing
That's us
Inbox placement
Will Gmail actually show it?
You forward one email — newsletter, launch, client note — to a one-time mailbox. We open it in real Gmail, Outlook, and Yahoo and tell you which tab it landed in, plus what to rewrite before you send it to your list.
Inbox vs. Promotions vs. Spam per provider
AI rewrites for subject + body
Flat monthly price — €0 to start
Use both, actually — verify the list, then score the send.Address-validity tools: ZeroBounce, NeverBounce, MXToolbox
FAQ
Free BIMI Checker
- What is BIMI?
- BIMI (Brand Indicators for Message Identification) is a DNS record that tells Gmail, Apple Mail and Yahoo which logo to show beside your name in the inbox. It is the only part of email authentication your recipients can actually see.
- Why is my BIMI logo not showing?
- Usually one of four things: DMARC is still at p=none rather than quarantine or reject, the SVG is not in the required SVG Tiny PS profile, the logo file cannot be downloaded, or there is no VMC/CMC certificate. URIports' 2025 sweep of the top million domains found 53.6% of BIMI-publishing domains had at least one error, up from 41.8% a year earlier.
- Do I need a trademark for BIMI?
- Not any more. A Verified Mark Certificate (VMC) requires a registered trademark, but since September 2024 Google also accepts a Common Mark Certificate (CMC), which only requires that the logo has been in continuous public use for at least a year. A CMC gets you the logo; only a VMC earns Gmail's blue checkmark.
- How much does BIMI cost?
- The DNS record and the SVG cost nothing. The certificate does: CMCs list from roughly $649/year and VMCs from roughly $1,350/year depending on the certificate authority. This checker is free and will tell you whether everything else is in place before you spend anything.
- Does BIMI improve deliverability?
- Not directly, and we will not claim a number we have not measured. BIMI does not change how filters treat your mail. What it requires — DMARC at enforcement — does matter, and the logo itself is a recognition and trust signal in a crowded inbox.
Built in the EU · GDPR by default
5,400+ emails tested
AI-classified across real Gmail, Outlook, and Yahoo inboxes.
Free · €0for unlimited scoring. €9.99 for AI deep-dives.
02~10 sec
We actually open it.
In real Gmail, real Outlook, real Yahoo. We watch where your email lands — Primary, Promotions, or Spam — using the same filters that decide whether your campaign worked.
03~10 sec
You get a report.
Plain English. Three things to change, in priority order. Unlock the bundle and we generate a subject, body, and CTA rewrite in your voice — paste them back into your campaign before lunch.
Keep going
Other free checks worth two minutes
- Mailtester.ai vs mail-tester.comTwo tools, almost the same name. Here's the honest difference.
- DMARC validatorCheck your DMARC record and what it tells receivers.
- Why your emails go to spamThe usual causes, in order, with what to change.
- Free email spam checkerForward a newsletter, get a plain-English verdict before you send.
Pricing
Free to score. Pay only for the AI deep-dive.
Forward any email and get the score — free and unlimited. Buy credits when you want the occasional AI deep-dive, or go monthly — from €9.99 — if you send regularly. Cancel from the same screen you upgrade on.
Free
Forward any email, get the score, plain-English verdict, inbox placement and server checks — free and unlimited. No card needed.
€0
Credits
About 5 AI deep-dives. Top up only when you need them — credits never expire.
€4.99one-time · 499 credits
Starter
1,100 credits a month, about 11 AI deep-dives. Cancel anytime.
€9.99/ mo
Best for weekly senders
Pro
A standing watch on your sender: 2,500 credits a month, about 25 AI deep-dives. Re-check every weekly send.
€19/ mo
Send your next one to the inbox.
Takes less time than picking a hero photo. No card, no signup, no anything.
Or send me a sample report first.
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Data deleted automatically · encrypted at rest · no third-party trackers
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