Will BIMI become mandatory?

BIMI becoming mandatory is unlikely in the near term but adoption pressure will increase. Like HTTPS adoption for websites, BIMI may become expected rather than required, creating competitive disadvantage for non-adopters.

Current state: BIMI requires DMARC enforcement, which itself isn't universally mandated. Logo display benefits brand visibility and trust but doesn't affect deliverability directly. Major providers support BIMI but don't require it.

Likely evolution: as more senders adopt BIMI, recipients may view non-BIMI senders with suspicion. Brands caring about inbox presentation will treat BIMI as standard practice. Formal mandates are less likely than market expectations making it de facto necessary for serious senders.