BIMI on Gmail: Requirements and Timeline

Gmail's BIMI Requirements

Gmail's BIMI implementation is the strictest of any provider. Here's exactly what you need:

1. DMARC at Enforcement

Your domain must have a DMARC policy of p=quarantine or p=reject. p=none doesn't qualify. If you're still at p=none, follow the advancement timeline.

2. SVG Tiny PS Logo

Your logo must be in SVG Tiny PS format — not standard SVG. Requirements include:

• Square dimensions
• Solid background (no transparency)
• SVG Tiny PS profile declaration
• No scripts, animations, or external references

3. Verified Mark Certificate (VMC)

A VMC from DigiCert or Entrust — the only authorized CAs. This costs ~$1,299/year and requires a registered trademark.

4. Registered Trademark

Your logo must be trademarked with a recognized intellectual property office (USPTO, EUIPO, CIPO, etc.). Pending applications don't qualify.

The Timeline

Step	Duration	Notes
DMARC to enforcement	6-12 weeks	If starting from scratch
SVG Tiny PS conversion	1-3 days	Graphic designer + validation
VMC procurement	2-4 weeks	Trademark + org verification
DNS publication	Minutes	TXT record at default._bimi
Gmail caching/display	Days to weeks	No way to speed this up

Practitioner note: The most common reason BIMI fails on Gmail isn't technical — it's that the trademark doesn't match the logo submitted for the VMC. The CA compares your logo against the trademark registration image. Even small differences can cause rejection.

The BIMI DNS Record for Gmail

Type: TXT
Host: default._bimi
Value: v=BIMI1; l=https://example.com/bimi/logo.svg; a=https://example.com/bimi/cert.pem

Both the l= (logo) and a= (authority/VMC) parameters are required for Gmail. The a= parameter is what other providers like Apple Mail don't require.

Verifying It Works

After publishing your BIMI record:

1. Use BIMI Inspector to validate your record
2. Send a test email to a Gmail account
3. Check Google Postmaster Tools for any authentication issues
4. Wait — Gmail's caching means it won't appear immediately

If your logo isn't showing after a week, check the BIMI troubleshooting guide.

Practitioner note: Gmail sometimes displays BIMI logos inconsistently — showing on mobile but not desktop, or vice versa. This usually resolves within a few weeks. Don't start changing DNS records because of inconsistent display in the first week.

Is It Worth It?

For brands sending high-volume email to consumers, yes. Your logo appears in every Gmail inbox next to your messages. That's brand reinforcement at scale with zero incremental cost per impression.

For B2B or low-volume senders, the $1,299/year VMC cost may not justify the visibility gains. Consider implementing BIMI without a VMC to cover Apple Mail and Yahoo first.

If you need the full BIMI-on-Gmail implementation handled — DMARC enforcement, logo conversion, VMC procurement, and DNS — schedule a consultation.

Sources

• Google: BIMI in Gmail
• BIMI Group: Implementation Guide
• DigiCert: VMC for Gmail BIMI

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v1.0 · April 2026