Best Email Encryption Software

Compare the Top Email Encryption Software as of October 2026

What is Email Encryption Software?

Email encryption software ensures the confidentiality and integrity of email communications by converting messages into unreadable formats that can only be decrypted by authorized recipients. It uses encryption protocols such as S/MIME and PGP to protect sensitive information from interception, eavesdropping, and unauthorized access. The software helps organizations comply with data privacy regulations like GDPR, HIPAA, and CCPA by securing emails containing personal or financial information. Email encryption can be applied at the message level, attachment level, or entire inbox, providing versatile protection for both internal and external communications. By safeguarding email content, businesses can reduce the risk of data breaches, maintain customer trust, and avoid costly compliance fines. Compare and read user reviews of the best Email Encryption software currently available using the table below. This list is updated regularly.

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    Virtru

    Virtru

    Virtru

    Easily control access to sensitive data flowing in and out of your organization via email, file sharing, and other applications. All powered by the Trusted Data Format and Virtru’s industry-leading platform for Zero Trust Data Control. Virtru integrates natively within the apps your teams already use, securing workflows in Google, Microsoft 365, Salesforce, Zendesk, and more. We make military-grade encryption accessible to everyone. Deploy Virtru across your organization in less than a day and meet your compliance goals. Granular access controls safeguard your most valuable asset — your data — throughout its entire lifecycle, everywhere it travels. Collaborate securely in Docs, Sheets, and Slides. Store and share files in Drive. Message via Gmail and Google Meet. Secure messages flowing through enterprise and custom apps. Seamlessly protect emails and files shared via Outlook.
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