BIMI Record Generator
What is BIMI?
BIMI (Brand Indicators for Message Identification) is an email specification that allows organizations to display their brand logo next to authenticated messages in supporting email clients. It requires strict DMARC enforcement and provides enhanced brand visibility.
How This Tool Works
- Enter your domain name
- Provide the HTTPS URL to your SVG logo
- Optionally add a VMC (Verified Mark Certificate) URL for enhanced trust
- Generate the BIMI DNS TXT record
- Add the record to your DNS and ensure DMARC is enforced
BIMI Prerequisites
Before implementing BIMI, you must have:
- DMARC Policy: Set to "quarantine" or "reject" (not "none")
- SPF & DKIM: Properly configured and passing
- SVG Logo: In SVG Tiny P/S format, square aspect ratio
- HTTPS: Logo must be served over secure connection
- VMC (Optional): Verified Mark Certificate from authorized provider
Logo Requirements
- Format: SVG Tiny Portable/Secure (SVG Tiny P/S)
- Aspect ratio: 1:1 (square)
- Served via HTTPS with valid SSL certificate
- No external references or scripts
- File size: Keep under 32KB for best compatibility
- Background: Transparent or solid color recommended
Example: Complete BIMI Setup
1. DMARC Record (_dmarc.example.com):
v=DMARC1; p=quarantine; rua=mailto:dmarc@example.com
2. BIMI Record (default._bimi.example.com):
v=BIMI1; l=https://example.com/bimi-logo.svg; a=https://example.com/vmc.pem
3. Logo hosted at:
https://example.com/bimi-logo.svg (SVG Tiny P/S format)
Email Clients Supporting BIMI
- Gmail (Google Workspace and consumer Gmail)
- Yahoo Mail
- Apple Mail (iOS 16+ and macOS Ventura+)
- Fastmail
- More providers adding support continuously
VMC (Verified Mark Certificate)
A VMC provides additional verification that you own the trademark for your logo. While optional, it's required by some email providers (like Gmail) to display your logo. VMCs are issued by authorized certificate authorities.
Best Practices
- Ensure DMARC is enforced (p=quarantine or p=reject) before enabling BIMI
- Use a professional logo designer to create SVG Tiny P/S format
- Test logo display using BIMI validation tools
- Consider obtaining a VMC for maximum compatibility
- Monitor DMARC reports to ensure high authentication pass rates
- Keep logo file size small for faster loading
Related Tools
- DMARC Checker - Verify DMARC enforcement
- Email Deliverability Tester - Check authentication setup
- DKIM Validator - Validate DKIM records
- SPF Checker - Verify SPF configuration
- DNS Record Viewer - View all DNS records