Best Email Encryption Software - Page 6

How Many Email Encryption Software Products Does G2 Track?

Total Products under this Category: 93

Category Stats (Oct 2026)

  • Average Rating: 4.56/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: SendSafely (+0.12%) - Among all products in this category, SendSafely recorded the largest rating increase compared to last month

Last updated: October 25, 2026

How Does G2 Rank Email Encryption Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 4,400+ Authentic Reviews
  • 93+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Email Encryption Software

G2 Grid® for Email Encryption Software plotting products by satisfaction and market presence

Highlighted products: Proton Mail For Business, Paubox, Virtru Email Encryption, Proofpoint Core Email Protection, Check Point Email Security, Proofpoint Email Encryption, FTAPI, and Tresorit.

Underlying data: [Grid® JSON](https://www.g2.com/categories/email-encryption/grids.json?focus%5B%5D=proton-mail-for-business&focus%5B%5D=paubox&focus%5B%5D=virtru-email-encryption&focus%5B%5D=proofpoint-core-email-protection&focus%5B%5D=check-point-email-security&focus%5B%5D=proofpoint-email-encryption&focus%5B%5D=ftapi&focus%5B%5D=tresorit)

PK Encrypt

PK Encrypt® is an enterprise-grade encryption solution designed to provide persistent data protection across IBM Systems. It ensures that sensitive information remains secure, whether at rest, in use, or in motion, by applying robust encryption that stays with the data throughout its lifecycle. This approach addresses the challenges of safeguarding data as it moves beyond the secure confines of IBM Z environments into distributed systems and cloud platforms. Key Features and Functionality: - Persistent Encryption: Utilizes AES-256 encryption standards to maintain continuous protection of sensitive data, regardless of its location or state. - Cross-Platform Compatibility: Ensures seamless data security across various platforms, facilitating encrypted data exchanges between IBM Z and non-z/OS environments. - Seamless Integration: Integrates with IBM's security frameworks, including SAF, CPACF, ICSF, and IBM Pervasive Encryption®, providing a cohesive security experience. - Flexible Encryption Options: Offers encryption using OpenPGP or X.509 certificates, catering to diverse transfer and storage requirements. Primary Value and Problem Solved: PK Encrypt addresses the critical need for robust data security in organizations relying on IBM Systems. By implementing persistent encryption, it mitigates the risks associated with data breaches, unauthorized access, and compliance violations. This solution ensures that sensitive information remains protected throughout its journey across various networks and platforms, thereby enhancing organizational integrity and trustworthiness.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate PK Encrypt?

  • Quality of Support: 10.0/10 (Category avg: 8.8/10)
  • Ease of Use: 8.3/10 (Category avg: 9.0/10)

Who Is the Company Behind PK Encrypt?

  • Seller: PKWARE
  • Year Founded: 1986
  • HQ Location: Milwaukee, WI
  • Twitter: @PKWARE
    1,122 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    162 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of PK Encrypt?

Rebex Secure Mail

Mail library for C# and VB.NET developers. Provides all you need for sending, receiving, encrypting, decrypting, signing, verifying, loading, saving and processing e-mails messages. Supports TLS 1.3/1.2/1.1/1.0.

Who Is the Company Behind Rebex Secure Mail?

  • Seller: Rebex
  • Year Founded: 1995
  • HQ Location: Prague 1, CZ
  • LinkedIn® Page: www.linkedin.com
    16 employees on LinkedIn®

AI can help you find the answers. G2 helps you trust them.

Connect G2 to Claude or ChatGPT for answers grounded in G2's trusted reviews, comparisons, and pricing from real user insights.

How it works

Sbwave

Sbwave email encryption is a free service that encrypts text messages for email delivery.

Who Is the Company Behind Sbwave?

Secure Exchanges

Secure Exchanges is a Canadian cybersecurity company founded to address the growing need for secure digital communications in Canada and internationally. The company develops and operates a cloud platform dedicated to protecting sensitive data exchanges. Its solutions serve businesses, professional firms, financial institutions, government agencies, and healthcare organizations that need to safeguard the confidentiality of their daily communications. The platform is available in English and French. The platform offers three core capabilities: end-to-end encrypted email, secure large file transfer supporting files up to 25 GB, and Adobe AATL-certified digital signatures. All communications are protected by AES 256 encryption and a zero-knowledge architecture, meaning neither Secure Exchanges nor any third party can access exchanged data or encryption keys. The solution integrates directly into Outlook and Gmail as a plugin, requires no IT team for deployment, and allows recipients to receive and reply securely without a license. Secure Exchanges addresses a critical challenge for organizations subject to confidentiality requirements: securing sensitive data exchanges without adding complexity to existing workflows. By integrating into the email tools already in use, the platform eliminates the friction typically associated with encrypted communications. Compliance with Quebec's Law 25 and the European GDPR, combined with SOC 2 Type II certification, enables organizations to meet their regulatory obligations for personal information protection and data security.

Who Is the Company Behind Secure Exchanges?

SekurSuite

Securely Manage and Create Encrypted Passwords, Store and Share Notes and Documents of all types, with the protection of Swiss Privacy Laws using Military Grade Encryption. Your data is fully encrypted in DigitalSafe and scanned for viruses as you back it up.

Who Is the Company Behind SekurSuite?

Siccura

Siccura works with all existing e-mail platforms. Once an e-mail account has been synced, encoding your mails takes seconds. Create a message within Siccura Work, chose your preferred e-mail account, and then send. Recipients not using Siccura Work will be able to sign up and decode your message instantly. Users also have the ability to delete messages after they’ve been opened.

Who Is the Company Behind Siccura?

  • Seller: Siccura
  • Year Founded: 2018
  • HQ Location: Bexley, GB
  • LinkedIn® Page: www.linkedin.com
    15 employees on LinkedIn®

Smartlockr

SmartLockr offers the most user-friendly and widely applicable data security available today. By turning the biggest cause of data breaches (human error) into the company's biggest assets, users enjoy a reliable email experience that thwarts inbound phishing attempts and prevents outbound data breaches. Fueled by machine learning and continuous innovation, SmartLockr empowers organizations to fully focus on their core business, without compromizing on their data security.

Who Is the Company Behind Smartlockr?

StartMail

StartMail is a privacy-focused email service that offers secure and private email communication. It provides users with encryption options, both for sending emails and for storing data. StartMail ensures that emails are not scanned for advertising purposes, as commonly done by free email services. It also offers features like disposable email addresses to enhance anonymity and protect users from spam. The service is built by the creators of Startpage, a privacy-oriented search engine, and it is aimed at individuals and businesses looking for more control over their email security and privacy.

Who Is the Company Behind StartMail?

StayPrivate

StayPrivate email encryption ensures that important emails and attachments are secure and stay private. Trusted by thousands of companies across the full range of sectors to protect millions of emails every day, StayPrivate's cloud-based email encryption combines military-grade encryption and enterprise security protocols with a market-leading consumer interface which is simple and intuitive to use. Business users send secure emails from their existing email account by including their chosen keyword anywhere in the email. The email and any replies are automatically protected and delivered securely via StayPrivate, with emails to businesses being delivered direct to the company server using TLS, so that business recipients can read and reply just like normal. When individuals receive an encrypted email, they simply click on the smart link in the email notification and enter their 4-digit PIN to read and reply to the email securely. All emails are organized neatly into private channels, ensuring a seamless, easy-to-use experience. StayPrivate is an easy-to-use email encryption service which is designed to work with all email servers. With no complicated passwords or sign-up processes, the StayPrivate user experience removes the challenges traditionally associated with email encryption solutions. No one should have to jump through hoops to communicate securely, and with StayPrivate you no longer have to! StayPrivate - Email Encryption for Everyone

Who Is the Company Behind StayPrivate?

The Data Krypter

The easy way to keep your data secure well into the future when quantum computers become mainstream. -encrypts files, folders and blocks of text -when encrypting a file/folder, you can: - -give the file/folder a random name - -securely erase the original -makes your data useless to an attacker in case you are ever a victim of ransomware. But you need to prepare ahead of time by encrypting your sensitive files. Then the attacker cannot: - -use your data or - -threaten to make your files public -you can receive encrypted files from someone else and only one of you needs to have a paid version (or a non-expired trial version) of the Data Krypter. i.e. an accountant or lawyer pays for the software and all their clients can send encrypted files with a trial version (even if it has expired). -even if someone has access to your computer they can't decrypt your files because your: - -master password is encrypted - -private keys are encrypted - -secret keys are encrypted (stored only to help recover keys). -recovery any lost keys or master password with the Data Recovery module <== NEW -symmetric encryption (the same secret key to encrypt and decrypt) using PERNG -asymmetric encryption (public/private keys) using NTRU-2x2 -both types of encryption are quantum proof -send encrypted emails by encrypting the text then pasting it into an email -no back door

Who Is the Company Behind The Data Krypter?

Trustifi Outbound Shield

Who Is the Company Behind Trustifi Outbound Shield?

  • Seller: Trustifi
  • Year Founded: 2005
  • HQ Location: Las Vegas, US
  • Twitter: @TRUSTIFI
    341 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    33 employees on LinkedIn®

WeCloud Email Security

WeCloud Email Security is a complete solution for security, validation and management of e-mail that works on all platforms.

Who Is the Company Behind WeCloud Email Security?

Lauren Worth
LW
Researched and written by Lauren Worth
Updated October 3, 2024