VMC and CMC

Mark certificates that prove you own the logo BIMI shows: Verified (trademark) or Common (12 months of use).

A Verified Mark Certificate needs a registered trademark and brings Gmail’s blue checkmark. A Common Mark Certificate needs no trademark, only proof that the logo has been on your website for at least a year. Gmail shows logos with either, Apple Mail only with a VMC. The certificate embeds the logo itself, so the file at the BIMI l= address must be exactly the same SVG; a mismatch is one of the most common reasons logos do not appear.

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BIMI: Your logo next to your messages in supporting inboxes, once DMARC is enforced.
DMARC: The policy that tells receivers what to do when mail fails SPF and DKIM, and where to report.

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VMC and CMC

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