RPost

RPost is a US email security and digital transaction management vendor founded in 2000, best known for its RMail email-encryption line and RSign e-signature line. It specializes in outbound email data protection (encryption, misaddressed-email prevention, and certified proof of delivery) and has added an AI-driven preemptive layer, PRE-Crime, built on its RAPTOR AI framework, to surface reconnaissance and insider leaks. RPost serves regulated industries including healthcare, legal, insurance, and financial services, counts Coca-Cola, the United Nations, and Allianz among its customers, and was named in the 2025 Gartner Magic Quadrant for Email Security Platforms.