Best Email Encryption Software

Compare the Top Email Encryption Software as of April 2025

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.

  • 1
    Encyro

    Encyro

    Encryo Inc

    Encyro offers secure file sharing, encrypted email, and electronic signatures. Encyro's award winning design makes the process easy for both you and your clients. You need not ask clients to sign up for any portal accounts. Encrypted Messaging and File Sharing You can directly send to any email address and Encyro automatically keeps your data secure both during transmission and storage to let you comply with HIPAA, GLB, IRS, GDPR, FINRA, SOX and other compliance standards. You can receive securely via your custom branded upload page that does not require the client to login or jump through hoops. Electronic Signatures Encyro e-signatures are designed to keep your transaction secure during remote signing. You control the login options and the type of signature to ensure that the right person is signing. Encyro also provides custom branding, automated reminders, and re-usable e-sign templates. NIST-800-63 compliant access codes by text/SMS for added security.
    Starting Price: $9.99/month/user
  • 2
    Skiff

    Skiff

    Skiff

    Skiff is a private, end-to-end encrypted workspace with Mail, Calendar, Pages, and Drive products for completely secure communication and collaboration. All Skiff products are designed with security and privacy in mind. All apps are built with end-to-end encryption (E2EE), so you never have to share your personal information, sensitive data, or private keys with anyone else. At all times, only you can access the content of your emails. Generous free tier - Enjoy 10 GB of free storage for your email, attachments, documents, and notes. - Create up to 4 free email aliases to protect your identity. Open-source and audited - Skiff Mail is open-source, uses open-source cryptography, and undergoes external security audits. - You can access our whitepaper and code at skiff.com. No trackers or ads - Sign up and upgrade without sharing any personal information; use crypto payments in many different currencies to upgrade. - Your data is never collected, sold, or shared.
  • 3
    Hushmail

    Hushmail

    Hushmail

    Hushmail protects your clients by adding encryption to your emails, web forms and e-signatures. It’s secure, HIPAA-compliant, and trusted by healthcare professionals worldwide. Best of all, Hushmail is easy to set up and use. Send your first encrypted email today, and set up a secure online intake form in minutes. Your Hushmail account works just like a regular email account, with added security features to help keep your data safe. Send and receive encrypted email on the web and iPhone. Access your account using Outlook, Apple Mail or your Android smartphone. Move your forms online in minutes. Hush™ Secure Forms is our secure alternative to old-fashioned paper forms and includes online signing for your most important digital forms. Switching from pen and ink to e-signatures has never been easier.
    Starting Price: $9.99/month/user
  • 4
    SenditCertified

    SenditCertified

    Privacy Data Systems

    SenditCertified provides a patented menu of cloud-based services, enabling subscribers to send and receive secure email and attachments, store large files, and complete signature-required transactions securely. With SenditCertified, your secure email has never been simpler and more secure. Try SenditCertified‘s secure, biometric-enabled email services for free for 14 days, no credit card is required. SenditCertified’s patented technology enables you to send confidential medical information such as patient social security number and address, diagnoses, referrals, test results, and pharmaceutical details can be sent and received securely, while maintaining HIPAA compliance. SenditCertified’s patented technology enables you to easily communicate online while maintaining attorney–client privilege. Safely send and receive email messages and documents – as well as audio and video files – while maintaining control over who can view, print, save or download your messages and files.
    Starting Price: $14.50 per user per month
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