BIMI

BIMI is a standard that lets a brand's logo appear beside its messages in supporting inboxes, provided the sending domain already enforces DMARC. It gives a CRM team a visible return on authentication work and a small trust signal in a crowded inbox. The requirements are strict: DMARC set to quarantine or reject, a logo in SVG Tiny PS format, and at several major providers a paid Verified Mark Certificate proving you own the trademark.