Email Authentication & Anti-phishing: Protocols, Logo Verification & Sender Identity

Securing Email at the Protocol and Brand Level

Email remains one of the most targeted attack surfaces for phishing, spoofing, and impersonation. This section explores a layered defense approach – from protocol-based authentication (SPF, DKIM, DMARC) to brand-level verification with VMC and CMC certificates.

Whether you’re securing your mail servers or enhancing inbox-level brand trust, these guides deliver the technical insights, configuration steps, and real-world context to get it done right.