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BIMI record generator

BIMI puts a brand logo next to your emails in supporting inboxes, and the record itself is one TXT line. The logo rules are strict, so this tool builds the line and flags the rules before you publish.

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What BIMI is

BIMI, short for Brand Indicators for Message Identification, is a standard that lets a brand show its logo next to its emails in supporting inboxes. The logo does not travel with the email. The inbox looks up a TXT record in your DNS, finds the logo file named in that record, and shows it beside your messages. This tool builds that TXT record.

The three parts you need first

  1. DMARC at enforcement. Your domain must have a DMARC record with a policy of p=quarantine or p=reject. A policy of p=none is not enough, and no inbox will show your logo until DMARC is enforced. Check yours with the DMARC Checker.
  1. A logo in the strict BIMI SVG format. The logo must be an SVG Tiny PS file, square, with a solid background, served over https. A normal SVG exported from a design tool usually does not meet this profile.
  1. A mark certificate for the big inboxes. Gmail requires a VMC, a Verified Mark Certificate, for most brands. A CMC, a Common Mark Certificate, is accepted in some cases. The certificate proves the logo is your trademark.

How to publish your BIMI record

  1. Get DMARC to p=quarantine or p=reject first, and keep it there.
  2. Put your BIMI SVG logo on a public https URL that ends in .svg.
  3. If you have a VMC or CMC, put the certificate file on a public https URL.
  4. Enter your domain, logo URL and certificate URL in the tool above and generate the record.
  5. Publish the record as a TXT record at the host shown above, which is your selector plus ._bimi plus your domain, for example default._bimi.example.com.
  6. Wait for DNS to update, then check the live record with the BIMI Checker and check the whole domain setup with the Domain Health Checker.

What BIMI does not do

BIMI is branding, not a deliverability fix. It does not get you into the inbox, fix spam placement, or replace SPF, DKIM and DMARC. It only adds your logo to mail that already authenticates. Treat it as branding on top of good authentication, not as a delivery fix.

FAQ

Do I need DMARC before BIMI?

Yes. Your domain must have DMARC at enforcement, p=quarantine or p=reject, before any inbox will show your logo. If your DMARC policy is p=none, fix that first.

What is a VMC and what does it cost?

A VMC is a Verified Mark Certificate. It proves your logo is your registered trademark, and Gmail requires one for most brands. Prices vary by issuer, and issuers also charge for validation, so get a current quote from a certificate issuer before you buy. A CMC is a Common Mark Certificate, accepted in some cases without a registered trademark, and its price also varies by issuer.

Why is my logo not showing?

The common reasons are DMARC not at enforcement, a logo that is not in the strict SVG Tiny PS profile, a missing or invalid VMC for Gmail, a record published at the wrong host, or an inbox that does not support BIMI. Check the record and the logo URL first, then the DMARC policy.

What SVG format is required?

The logo must be SVG Tiny PS, the strict BIMI profile of SVG. It must be square, have a solid background, and be served over https from a public URL ending in .svg. No scripts, no animation, and no external images.

Which inboxes support BIMI?

Support changes over time. Gmail, Yahoo Mail and Apple Mail are the best known supporters, each with its own rules. Some inboxes show BIMI logos for all senders that qualify, and some only for senders with a VMC. Other inboxes do not support BIMI at all, which is normal and does not break your mail.

Can I use BIMI without a trademark?

In some cases, yes. Some inboxes accept a CMC, a Common Mark Certificate, or show the logo with a CMC or with no certificate. Gmail, however, requires a VMC for most brands, and a VMC needs a registered trademark, so most brands need the trademark route for Gmail. Check the rule for the inbox you care about before you spend money.

How long until the logo appears?

There is no fixed time. DNS changes need to spread first, and each inbox then picks up the record on its own schedule. Allow at least a few days, and check again after a week before you assume something is wrong.

Is this tool free?

Yes. This generator is free and needs no sign up.

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