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Email complianceReviewed September 7, 2026

What is BIMI?

BIMI lets sending domains publish a brand-logo signal for supporting mailbox providers to display beside authenticated mail.

Who this applies to#

  • BIMI applies to sending domains and supporting mailbox providers

What BIMI requires#

  • BIMI Group guidance calls for enforced DMARC, a suitable SVG Tiny PS logo, and a BIMI DNS record

What this does not require#

  • BIMI is not an inbox-delivery guarantee and certificate requirements vary by provider

Common mistakes#

  1. Treating logo display as a delivery guarantee
  2. Assuming every provider has the same certificate requirement

BIMI checklist#

  • Confirm enforced DMARC
  • Prepare the supported logo format
  • Publish the BIMI record

OnVoard's take#

BIMI is a visible brand signal layered on authentication, not a substitute for authentication or delivery measurement.

Official sources#