How do you know if an email you received from a company is legitimate? Use an official logo that responds to Google. This is the subject of a new authentication specification called BIMI (Brand Message Identification Indicators).
Through this process, a company or a brand can replace the generic avatar used in Gmail with their own logo. The image below shows an example before/after with Bank of America, one of Google’s partners in launching this new feature.
To do this, the company must use the DMARC (Domain-Based Message Authentication, Reporting, and Compliance) authentication protocol, which protects domain name holders from potential spoofing.
Additionally, the logo must be validated by a competent authority, such as Entrust Datacard or DigiCert. This authority then provides a Certificate of Authenticity, called a Verification Mark Certificate (VMC).
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Finally, the email service must be compliant with the BIMI specification. This is currently the case with MailChimp, SendGrid, Valimail, Fastmail, Proofpoint, and Verizon Media. Google’s arrival will undoubtedly give a boost to this authentication process, and will further complicate the work of spammers and other phishing kings.
Source : The Google