PreVeil Email is an end-to-end encrypted email solution designed for regulated industries that handle sensitive data such as Controlled Unclassified Information (CUI) and ITAR-regulated information. The solution adds an encrypted mailbox to existing email clients without requiring changes to email infrastructure. Users retain their existing email addresses and can access secure email through their current email clients. It is deployable within minutes and requires no changes to existing infrastructure. **Security Architecture:** PreVeil uses end-to-end encryption and a zero-trust architecture, meaning only the sender and intended recipients can access communications — PreVeil itself has no access to user data. This design protects against spam, phishing, server breaches, admin vulnerabilities, and password attacks. **Compliance:** The platform is designed to meet requirements for CMMC, NIST 800-171, ITAR, DFARS, HIPAA, CJIS, and PCI DSS. It is FIPS 140-3 validated and FedRAMP authorized. **Collaboration:** External parties (subcontractors, partners, clients) can create free PreVeil accounts to communicate securely, eliminating the need for expensive guest licenses. **Included Storage:** PreVeil Email includes PreVeil Drive, an encrypted file storage and sharing solution. **Access:** Available on Windows, macOS, iOS, Android, and via web browser. **Industries Served:** Defense, healthcare, higher education, K-12 education, legal, and tax/accounting.