10+ Best Email Encryption Software to Meet Compliance & Stop Breaches

Proton Mail is a privacy-focused email service offering end-to-end and zero-access encryption to secure your communications. Your messages are encrypted on your device and can only be decrypted by the recipient, ensuring high confidentiality. It operates under strict Swiss privacy laws, with all data stored on servers in Switzerland.

This makes it an excellent choice if you prioritize robust security and privacy, including features like password-protected messages for non-Proton Mail recipients and self-destructing emails. Proton Mail also integrates with other Proton services such as VPN, calendar, and cloud storage.

Virtru provides easy-to-use email encryption, integrating seamlessly with existing email platforms like Gmail and Microsoft Outlook. It secures sensitive data and ensures compliance with regulations like HIPAA, making it suitable for various industries including healthcare and education.

Virtru's data-centric security allows you to control access to your emails and attachments even after they are sent, with features like revoking access and setting expiration dates. Users consistently praise its straightforward installation and user-friendly interface for secure communication.

Zix offers comprehensive email encryption solutions designed to protect sensitive information and ensure compliance for businesses. It provides secure messaging, threat protection, and data loss prevention capabilities. Zix aims to simplify email security for organizations of all sizes.

Its platform helps prevent data breaches by encrypting emails automatically based on policy, and it offers various deployment options. Zix is recognized for its focus on regulatory compliance, particularly in industries handling confidential data.

Mimecast provides an all-in-one cloud email security platform that includes robust email encryption, archiving, and continuity services. It is designed to protect organizations from advanced threats like phishing, malware, and data breaches, while also ensuring regulatory compliance.

Its email encryption capabilities allow you to send sensitive information securely, with flexible policy-based encryption and secure messaging portals for recipients. Mimecast offers comprehensive protection across the email lifecycle, from inbound threat defense to outbound data leak prevention.

Egress offers intelligent email security that uses AI to detect and prevent human-activated risk, including accidental data loss and targeted phishing attacks. Its encryption capabilities ensure that sensitive information remains protected, whether in transit or at rest.

The platform provides adaptive and user-friendly encryption that integrates with existing email clients, simplifying secure communication for senders and recipients. Egress focuses on making security intuitive, helping users make secure decisions without hindering productivity.

LuxSci delivers HIPAA-compliant email and secure digital communication solutions, particularly for organizations handling sensitive healthcare data. It prioritizes reliability, scalability, and hands-on technical support, ensuring your sensitive information is protected without sacrificing usability.

Its flexible encryption and suite of solutions, including secure email, marketing, and forms, cater to diverse healthcare communication needs. LuxSci offers automatic, policy-based encryption for outbound emails and is praised for its advanced technology and customer-first approach.

Trustifi provides robust email security with advanced email encryption, inbound threat protection, and data loss prevention (DLP) features. It simplifies the process of sending and receiving encrypted emails, often with a one-click decrypt option for recipients, eliminating the need for cumbersome portals.

This platform uses AES 256-bit encryption and integrates seamlessly with Microsoft 365 and Google Workspace. Trustifi focuses on ease of use for both senders and recipients, ensuring compliance and protecting sensitive data from various email threats.

PreVeil offers end-to-end encrypted email and file sharing designed for organizations requiring high levels of security and compliance, such as those handling CUI and meeting CMMC/DFARS requirements. It provides a user-friendly interface for secure communication and storage.

This software allows you to encrypt emails and share files securely with contractors and colleagues. PreVeil is praised for its ease of use, simple installation across teams, and effectiveness in providing a secure solution without the need for complex IT overhead.

Paubox provides HIPAA-compliant email encryption that integrates effortlessly with popular platforms like Google Workspace and Microsoft 365. It automatically encrypts all outbound emails by default, eliminating the need for recipients to use portals or passwords.

This focus on seamless, automatic encryption ensures patient privacy and regulatory adherence, significantly reducing administrative burden and human error. Paubox is highly rated for its ease of use, simple setup, and exceptional customer support, making it an excellent choice for healthcare organizations.

Hushmail is a secure email service that emphasizes privacy and regulatory compliance, particularly for healthcare and legal professionals. It offers encrypted email, secure web forms, and electronic signatures, with automatic encryption for sensitive communications.

Operating under Canadian law, Hushmail utilizes OpenPGP encryption for email content and provides features like custom domains and HIPAA support with Business Associate Agreements. While user-friendly, it requires careful consideration of its server-side encryption and logging policies.