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BIMI Syntax

BIMI syntax is the format and structure of the BIMI record that email senders publish in their DNS. The BIMI record is a TXT record that follows the format:

v=BIMI1; l=logo_url; a=certification_authority;

BIMI Tag Descriptions

TagDescription
vThe BIMI version. Currently BIMI1.
lThe URL link to the logo image file. The logo image must be in SVG format, and must follow the BIMI logo guidelines.
aThe certification authority, which is an optional field that specifies the name of the trusted third-party authority that issued the logo certification. This field is required for some email service providers, such as Gmail.