Brand Indicators for Message Identification (BIMI) enables email senders to have a logo or image of their choosing displayed next to email messages they send to participating mailbox providers. BIMI builds on DMARC and related email authentication standards to ensure that only messages authorized by those senders display such images, so it frequently comes up as a topic when DMARC is discussed.
Starting in mid-2021, DomainTools started supplying DMARC.org with data on DNS lookups of BIMI records. A total of 33,924 unique and valid BIMI records were observed through the middle of 2024. Of that total, approximately 3,450 records included a link to a VMC. (DMARC.org did not retrieve and examine these certificates.) The following graph shows the growth of BIMI records which are still active in DNS, since March 2021, alongside the percentage of new records added each month.
The following graph shows the number of new BIMI records observed each month since March 2021.
We hope to take a closer look at how BIMI is adopted over the coming years.