Implementation Guide

Please check back frequently for changes and updates. Future BIMI programs may require BIMI certificates. Note:
  • These steps and resources are not final and will be updated as new information becomes available.
  • Each participating mailbox provider has their own criteria for determining when a domain’s BIMI logo may be displayed. Please see the Senders FAQ for more guidance.
  • To view BIMI adoption status by mailbox provider, visit this BIMI Group infographic

Step 1

Authenticate all of your organization’s emails with SPF, DKIM and DMARC – ensure all are aligned

  • DMARC policy must be at enforcement:
    • Reject on the organizational domain and subdomain policy (i.e. p=reject; sp=reject)
    • or Quarantine at 100 percent (i.e. p=quarantine; pct=100)
  • Note: “None” policies or ‘pct’ less than 100 percent are not accepted
  • Need DMARC Help? Head over to for the latest information

Step 2

Produce an SVG Tiny PS version of your official logo

Step 3 (Recommended, but Optional)

Acquire a Verified Mark Certificate (VMC) for Your Logo

VMCs exist to validate ownership of an organization’s logo; the certificates are based on registered trademarks of the logo/image; information on supported jurisdictions here.

At this time, VMCs are being issued by two accepted Mark Verifying Authorities:

Step 4

Publish a BIMI record for your domain in DNS

a= tag is currently optional

  • default._bimi.[domain] IN TXT “v=BIMI1; l=[SVG URL]; a=[PEM URL]
  • Validate or create your BIMI record with the BIMI Inspector