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BIMI is designed to ensure that logos are displayed only for messages that properly originate from a sending organization. BIMI leverages a domain's deployment of DMARC (Domain-based Message Authentication, Reporting & Conformance) to prevent domain impersonation. It works with VMCs (Verified Mark Certificates) and other forms of BIMI Evidence Documents to verify the ownership and authenticity of a logo and the logo's connection to that domain. Prepare your email server for BIMI support in Apple Mail - Support - Apple Developer