Brand Indicators for Message Identification (BIMI)

Document Type Replaced Internet-Draft (individual)
Authors Seth Blank  , Peter Goldstein  , Thede Loder  , Terry Zink  , Marc Bradshaw 
Last updated 2021-09-10 (latest revision 2021-03-09)
Replaced by draft-brand-indicators-for-message-identification
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Brand Indicators for Message Identification (BIMI) permits Domain Owners to coordinate with Mail User Agents (MUAs) to display brand- specific Indicators next to properly authenticated messages. There are two aspects of BIMI coordination: a scalable mechanism for Domain Owners to publish their desired Indicators, and a mechanism for Mail Transfer Agents (MTAs) to verify the authenticity of the Indicator. This document specifies how Domain Owners communicate their desired Indicators through the BIMI Assertion Record in DNS and how that record is to be interpreted by MTAs and MUAs. MUAs and mail- receiving organizations are free to define their own policies for making use of BIMI data and for Indicator display as they see fit.


Seth Blank (
Peter Goldstein (
Thede Loder (
Terry Zink (
Marc Bradshaw (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)