BIMI record generator
Build the DNS record that puts your logo next to your email, and check it as you go — or paste a record you already have and read it back in plain English. They stay in sync both ways.
What is BIMI?
BIMI (Brand Indicators for Message Identification) is a small DNS record that tells supporting inboxes — Gmail, Apple Mail, Yahoo, Fastmail and others — to show your brand logo next to the messages you send. Instead of a grey initial in the avatar slot, recipients see your mark, which makes your mail easier to recognize and harder to impersonate.
BIMI doesn't authenticate your mail on its own — it rides on top of the work you've already done. A mailbox only honours it once your messages pass DMARC at an enforcement policy. The record itself just points to two files: your logo, and an optional certificate proving the logo is really yours.
DMARC enforcement
The prerequisite. Your domain needs a DMARC policy of quarantine or reject before any inbox will display a BIMI logo.
SVG logo
A square logo in the SVG Tiny Portable/Secure profile, hosted over HTTPS. The l tag in the record points to it.
Verified Mark Certificate
Gmail and Apple Mail require a VMC — a certificate that proves you own the trademark on your logo. The a tag points to it.
You publish the record this tool builds as a TXT record at default._bimi.yourdomain.com in your DNS provider. After saving it, changes take a little while to spread across the internet (“DNS propagation”), and inboxes refresh logos on their own schedule, so it won't appear instantly.
Build your record
Fill in the link to your logo, and a certificate if you have one — the DNS record on the right updates as you go. Already have a record? Paste it into the record box and the fields will fill in to match.
Record builder
Fill in your logo and certificate — the record updates live.
Logo
lThe HTTPS link to your brand logo. It must be an SVG Tiny Portable/Secure file — a square, single-path mark on a solid background. This is the one thing BIMI can't work without.
Verified Mark Certificate
aA VMC proves you own the trademark on your logo. Gmail and Apple Mail won't show the logo without one — but you can publish the record first and add the certificate later.
DNS record
Publish this TXT record at your domain.
Add this as a new record at your DNS provider. “Type” and “Host” are the fields it asks for — some providers want just default._bimi in the host field and add the domain for you.
Paste an existing record here and the builder updates to match.
- No a tag — Gmail and Apple Mail need a Verified Mark Certificate to display your logo.