Proofpoint Email Encryption is a data loss prevention solution that automatically encrypts outgoing email messages and attachments containing confidential, sensitive, or protected information. The system uses policy-based classification to identify and protect critical data, preventing unauthorized sharing of sensitive information outside the organization. The solution operates transparently without requiring manual user intervention or software installation on endpoints. It features a policy engine that allows administrators to define and apply encryption policies at global, group, and user levels, with integration capabilities for LDAP and Active Directory systems. The platform analyzes outgoing email content using deep content analysis to detect regulated information and confidential data through document fingerprinting with full and partial matching capabilities. Encryption policies are centrally managed and enforced at the email gateway. The system can detect sensitive data within various file formats including Microsoft 365 documents, PDFs, and images. Encryption keys are generated, stored, and managed through cloud infrastructure. Administrators can set message expiration policies and revoke individual messages to specific recipients without affecting other communications.
