Brand trust
BIMI readiness checklist
Validate DMARC policy, coverage, logo format and certificate expectations.
8 minute readUpdated October 16, 2026
Readiness checks
Complete these checks before troubleshooting logo display.
- DMARC uses p=quarantine or p=reject
- pct is 100
- Legitimate senders pass aligned authentication
- The BIMI TXT record is syntactically valid
- The logo is served over HTTPS and conforms to SVG Tiny PS
- Certificate requirements are confirmed for target mailbox providers
Record structure
The a value may be empty where a provider does not require certificate evidence, but provider display rules still apply.
Default selector
v=BIMI1; l=https://example.com/brand/logo.svg; a=https://example.com/brand/certificate.pem