Verified Mark Certificate — a certificate from DigiCert or Entrust that confirms the trademark rights to the logo used. Mandatory for BIMI display in Gmail and Yahoo. Apple Mail also shows BIMI without a VMC.

What SVG specs does BIMI require?

SVG Tiny PS 1.2 — a restricted subset without animations, external references or JavaScript. Square, viewBox 0 0 N N, sRGB colour profile.

Where is BIMI actually displayed?

Gmail (with VMC), Yahoo Mail (with VMC), Apple Mail (possible without VMC), Fastmail. Outlook.com has support planned; rollout is currently open.

Do I need p=quarantine or is p=none enough?

At least p=quarantine is mandatory for BIMI display. The reason: BIMI sends a strong trust signal — that should not apply to domains that have not even activated an anti-spoofing policy yet.

What does a VMC cost?

Typically EUR 1,200–1,800 per year directly from DigiCert/Entrust. Through Mailantis you get reseller pricing and support with the trademark proof process.

Setting up BIMI | Mailantis Learn

What BIMI delivers

Recognition: your logo appears before the email is even opened.
Trust: recipients immediately see that the mail is authenticated.
Brand protection: forgeries are missing the logo, the difference is obvious at a glance.

The prerequisites

BIMI requires DMARC with p=quarantine or p=reject. Without an active policy, no mail provider will display your logo. Finish DMARC setup first, then BIMI.

The four steps

1. Prepare an SVG logo

BIMI requires a specific SVG format, SVG Tiny Portable/Secure (SVG 1.2 Tiny PS). No external references, no script, only solid fills or paths.

Square, centred motif, clearly readable even at 32 × 32 pixels.
Maximum 32 KB.
Must be publicly reachable over HTTPS.

2. Obtain a VMC certificate Cost factor

For Gmail and Yahoo, a Verified Mark Certificate (VMC) is mandatory. It proves that the logo is your registered trademark.

Issuer: e.g. DigiCert or Entrust.
Prerequisite: registered word/figurative mark at the trademark office.
Cost: typically EUR 1,000-1,500 per year.

3. Upload the assets

Place the SVG and the .pem certificate on a publicly reachable HTTPS server (e.g. https://firma.at/bimi/logo.svg).

4. Set the DNS record

; TXT record for default._bimi.firma.at
"v=BIMI1; l=https://firma.at/bimi/logo.svg; a=https://firma.at/bimi/vmc.pem"

The components:

v=BIMI1, BIMI version.
l=, URL of the SVG logo.
a=, URL of the VMC certificate.

Who supports BIMI?

Provider	VMC required?	Display
Gmail	Yes	Yes
Yahoo / AOL	Yes	Yes
Apple Mail (iOS / macOS)	Yes	Yes
Fastmail	No	Yes
Outlook.com / Microsoft 365	—	Pilot

Test BIMI before going live. The first real send to a Gmail address shows whether everything fits, or whether the BIMI validator rejects the logo and certificate.

Key takeaways

BIMI requires DMARC with p=quarantine or p=reject, without an active policy, no provider shows your logo.
Prepare a square SVG in the SVG Tiny PS 1.2 format (max. 32 KB, publicly reachable over HTTPS).
Gmail and Yahoo need a VMC (typically EUR 1,000-1,500 per year, registered trademark required); Apple Mail and Fastmail show BIMI without a VMC.
Publish the TXT record at default._bimi.<domain> with l= (logo) and a= (certificate).

Setting up BIMI, your logo in the inbox.