MeSign Email Encryption is a PKI-based solution that offers end-to-end encryption, digital signature, timestamp, anti-spam, and anti-virus features to protect corporate emails against data breaches, ransomware, and phishing. The solution is easy to deploy, use, and manage with the help of their own-built Cloud Cryptographic Infrastructures. MeSign also supports customization to integrate with organizations' own cryptographic infrastructures and mobile versions for Android and iOS. The solution will soon support Mac OS and Linux.