# Best Email Encryption Software - Page 4

*By [Lauren Worth](https://research.g2.com/insights/author/lauren-worth)*


Email encryption technology is used to transform and secure information travelling through an email server. These tools ensure data-in-transit remains secure until the authorized party is identified. Email encryption can be useful in any industry, but is a requirement for others. Medical records and government data are both examples of information that must be encrypted before being shared.

Email encryption tools use a variety of encryption methods to mask information, but they all provide some level of encryption capabilities to prevent unauthorized access to sensitive business information. Transport-level-encryption will ensure no eavesdropping occurs and that information remains private until delivered to the target network. End-to-end encryption adds further factors keep data encrypted longer. For example, an email can be encrypted from the point of creation and remain encrypted until only approved devices directly associated with the target user.

Some [secure email gateway software](https://www.g2.com/categories/secure-email-gateway) possesses encryption capabilities, but those tools also have additional features for comprehensive spam filtering, malware protection and information archiving.

To qualify for inclusion in the Email Encryption category, a product must:

- Encrypt content being delivered via email
- Require some level of authentication for access
- Facilitate industry-related communication compliance





## Top Email Encryption Software at a Glance
| # | Product | Rating | Best For | What Users Say |
|---|---------|--------|----------|----------------|
| 1 | [Proton Mail For Business](https://www.g2.com/products/proton-mail-for-business/reviews) | 4.6/5.0 (417 reviews) | Zero-access encrypted email with Swiss jurisdiction | "[Secure, Effective, Simplicity](https://www.g2.com/survey_responses/proton-mail-for-business-review-12826356)" |
| 2 | [Paubox](https://www.g2.com/products/paubox/reviews) | 4.9/5.0 (598 reviews) | Portal-free HIPAA-compliant email encryption | "[HIPAA-Compliant Email Encryption without friction](https://www.g2.com/survey_responses/paubox-review-13114802)" |
| 3 | [Virtru Email Encryption](https://www.g2.com/products/virtru-email-encryption/reviews) | 4.4/5.0 (412 reviews) | Gmail-native toggle-based HIPAA email encryption | "[Effortless Secure Emailing with Virtru](https://www.g2.com/survey_responses/virtru-email-encryption-review-8020917)" |
| 4 | [Proofpoint Core Email Protection](https://www.g2.com/products/proofpoint-core-email-protection/reviews) | 4.6/5.0 (589 reviews) | Policy-driven outbound encryption with DLP enforcement | "[Robust Email Security with Some Rule Management Hurdles](https://www.g2.com/survey_responses/proofpoint-core-email-protection-review-12792121)" |
| 5 | [Check Point Email Security](https://www.g2.com/products/check-point-email-security/reviews) | 4.6/5.0 (487 reviews) | API-native email encryption with DLP enforcement | "[Accuracy Redefined, Perfect for Email Security](https://www.g2.com/survey_responses/check-point-email-security-review-12713186)" |
| 6 | [Proofpoint Email Encryption](https://www.g2.com/products/proofpoint-email-encryption/reviews) | 4.6/5.0 (17 reviews) | Policy-automated email encryption for compliance workflows | "[Proofpoint Email Encryption](https://www.g2.com/survey_responses/proofpoint-email-encryption-review-9019919)" |
| 7 | [FTAPI](https://www.g2.com/products/ftapi/reviews) | 4.8/5.0 (17 reviews) | GDPR-compliant encrypted email with Outlook integration | "[A Secure and User-Friendly Solution for Data Transfer](https://www.g2.com/survey_responses/ftapi-review-11070244)" |
| 8 | [SendSafely](https://www.g2.com/products/sendsafely/reviews) | 4.8/5.0 (51 reviews) | Frictionless encrypted file transfer with workflow integrations | "[Effortless Deployment and Powerful API/Webhooks for Smooth Integrations](https://www.g2.com/survey_responses/sendsafely-review-12863047)" |
| 9 | [Tresorit](https://www.g2.com/products/tresorit/reviews) | 4.5/5.0 (256 reviews) | Zero-knowledge encrypted file sharing with compliance | "[Keeping Important Work Files and Shared Resources Better Organized and Easier to Access](https://www.g2.com/survey_responses/tresorit-review-12881466)" |
| 10 | [Kiteworks](https://www.g2.com/products/kiteworks/reviews) | 4.4/5.0 (120 reviews) | Governed encrypted email with compliance audit trails | "[Secure File Sharing and Email with Strong Encryption and Access Controls](https://www.g2.com/survey_responses/kiteworks-review-12477888)" |


## G2 Grid® for Email Encryption Software
![G2 Grid® for Email Encryption Software plotting products by satisfaction and market presence](https://www.g2.com/categories/email-encryption/grids.png?focus%5B%5D=13912&focus%5B%5D=25519&focus%5B%5D=3675&focus%5B%5D=30562&focus%5B%5D=112257&focus%5B%5D=66979&focus%5B%5D=61300&focus%5B%5D=84242)
Highlighted products: Proton Mail For Business, Paubox, Virtru Email Encryption, Proofpoint Core Email Protection, Check Point Email Security, Proofpoint Email Encryption, FTAPI, and SendSafely.
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=sendsafely)


## How Many Email Encryption Software Products Does G2 Track?
**Total Products under this Category:** 86

### Category Stats (Jul 2026)
- **Average Rating**: 4.55/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product**: INKY Email Security Platform (+0.69%) - Among all products in this category, INKY Email Security Platform recorded the largest rating increase compared to last month
*Last updated: July 21, 2026*


## How Does G2 Rank Email Encryption Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 4,200+ Authentic Reviews
- 86+ 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.


## Which Email Encryption Software Is Best for Your Use Case?

- **Leader:** [Proton Mail For Business](https://www.g2.com/products/proton-mail-for-business/reviews)
- **Highest Performer:** [SendSafely](https://www.g2.com/products/sendsafely/reviews)
- **Easiest to Use:** [Paubox](https://www.g2.com/products/paubox/reviews)
- **Top Trending:** [Proton Mail For Business](https://www.g2.com/products/proton-mail-for-business/reviews)
- **Best Free Software:** [Paubox](https://www.g2.com/products/paubox/reviews)


---

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[Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=1627&secure%5Bchosen_at%5D=2026-07-22T10%3A24%3A54Z&secure%5Bdisplayable_resource_id%5D=1627&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1627&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1806417&secure%5Bresource_id%5D=1627&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=llm_category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Femail-encryption%3Fopen_modal_url%3D%252Fproducts%252Fzivver-email-encryption%252Fwishlists%253Fhost_path%253D%25252Fcategories%25252Femail-encryption%2526source%253Dcategory&secure%5Btoken%5D=93f62d56055a61b3d41e2a4aa4dea961dd906e237c792bd815eda139530dbac3&secure%5Burl%5D=https%3A%2F%2Fwww.paloaltonetworks.com%2Fprisma-browser-for-business%3Futm_source%3Dg2-panw_inhouse-amer-sase-smco-sfow%26utm_medium%3Ddisplay%26utm_campaign%3Dg2-sase-prisma_browser_smb-amer-us-awareness-en-native-cat_com%26utm_content%3D701Ki000000p2UKIAY&secure%5Burl_type%5D=custom_url)

---

## What Are the Top-Rated Email Encryption Software Products in 2026?
### 1. [Secure Exchanges](https://www.g2.com/products/secure-exchanges/reviews)
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?**

- **Seller:** [Secure Exchanges](https://www.g2.com/sellers/secure-exchanges)
- **Year Founded:** 2015
- **HQ Location:** Drummondville, CA
- **LinkedIn® Page:** https://www.linkedin.com/company/secure-exchanges/ (12 employees on LinkedIn®)






### 2. [SekurSuite](https://www.g2.com/products/sekursuite/reviews)
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?**

- **Seller:** [GlobeX Data](https://www.g2.com/sellers/globex-data)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)






### 3. [Siccura](https://www.g2.com/products/siccura/reviews)
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](https://www.g2.com/sellers/siccura)
- **Year Founded:** 2018
- **HQ Location:** Bexley, GB
- **LinkedIn® Page:** https://www.linkedin.com/company/siccura-app (15 employees on LinkedIn®)






### 4. [Smartlockr](https://www.g2.com/products/smartlockr/reviews)
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?**

- **Seller:** [Smartlockr](https://www.g2.com/sellers/smartlockr)
- **Year Founded:** 2014
- **HQ Location:** Amsterdam, NL
- **LinkedIn® Page:** https://www.linkedin.com/company/smartlockr (10 employees on LinkedIn®)






### 5. [StartMail](https://www.g2.com/products/startmail/reviews)
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?**

- **Seller:** [StartMail BV](https://www.g2.com/sellers/startmail-bv)
- **Year Founded:** 2012
- **HQ Location:** The Hague, NL
- **LinkedIn® Page:** https://www.linkedin.com/company/startmail-bv (12 employees on LinkedIn®)






### 6. [StayPrivate](https://www.g2.com/products/stayprivate/reviews)
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?**

- **Seller:** [StayPrivate](https://www.g2.com/sellers/stayprivate)
- **Year Founded:** 2014
- **HQ Location:** Gerrards Cross, GB
- **LinkedIn® Page:** https://www.linkedin.com/company/stayprivate-ltd (14 employees on LinkedIn®)






### 7. [The Data Krypter](https://www.g2.com/products/the-data-krypter/reviews)
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?**

- **Seller:** [Nuverb Systems](https://www.g2.com/sellers/nuverb-systems-f1c0bb84-9146-4f7a-a1ed-45d9959ef5e9)
- **HQ Location:** Toronto, CA
- **LinkedIn® Page:** https://www.linkedin.com/company/nuverb-systems-inc./about/ (1 employees on LinkedIn®)






### 8. [WeCloud Email Security](https://www.g2.com/products/wecloud-email-security/reviews)
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?**

- **Seller:** [WeCloud](https://www.g2.com/sellers/wecloud)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)






### 9. [XFA MAIL](https://www.g2.com/products/xfa-mail/reviews)
XFA Mail is a weightless security email plug-in that offers the strongest available encryption technology which protects any form of email communication or attachment from being viewed by unauthorized parties.



**Who Is the Company Behind XFA MAIL?**

- **Seller:** [Secure Channels](https://www.g2.com/sellers/secure-channels)
- **HQ Location:** N/A
- **LinkedIn® Page:** https://www.linkedin.com/company/No-Linkedin-Presence-Added-Intentionally-By-DataOps (1 employees on LinkedIn®)






### 10. [Z1 SecureMail Gateway](https://www.g2.com/products/z1-securemail-gateway/reviews)
25% of the 100 German companies with the highest turnover choose Zertificon. Z1 SecureMail Gateway is our highly automated enterprise email encryption solution for effortless, secure communication with anyone, anywhere. Your entire organization encrypts and decrypts, manages, and verifies email signatures smoothly in the background. Z1 SecureMail Gateway requires minimal maintenance. Besides, the browser-based administration interface demands no special skills. Keys are managed automatically, and central policies enforce security. Integration with your cloud or on-premises email infrastructure is fast. Your workflows and business are not disrupted - no employee training is required, plus recipients benefit from a smooth experience. With Z1 SecureMail Gateway, encryption is centrally configurable and protected against human error. You easily achieve and maintain compliance and the highest security standards. In addition, you own all encryption keys and gain German-engineered data sovereignty without backdoors.



**Who Is the Company Behind Z1 SecureMail Gateway?**

- **Seller:** [Zertificon Solutions](https://www.g2.com/sellers/zertificon-solutions)
- **Year Founded:** 2004
- **HQ Location:** Berlin, DE
- **LinkedIn® Page:** https://www.linkedin.com/company/zertificon-solutions-gmbh/ (87 employees on LinkedIn®)






### 11. [Zix Email Message Privacy](https://www.g2.com/products/zix-email-message-privacy/reviews)
Zix Email Message Privacy transforms your existing email environment into a secure communications workplace, with point-to-point message encryption and tracking, large file sharing, and e-signature capability – and the compatibility to work seamlessly with other compliance and security services.



**Who Is the Company Behind Zix Email Message Privacy?**

- **Seller:** [OpenText](https://www.g2.com/sellers/opentext)
- **Year Founded:** 1991
- **HQ Location:** Waterloo, ON
- **Twitter:** @OpenText (21,565 Twitter followers)
- **LinkedIn® Page:** https://www.linkedin.com/company/2709/ (23,048 employees on LinkedIn®)
- **Ownership:** NASDAQ:OTEX







## What Is Email Encryption Software?

[Email Security Software](https://www.g2.com/categories/email-security)

## What Software Categories Are Similar to Email Encryption Software?

- [Secure Email Gateway Software](https://www.g2.com/categories/secure-email-gateway)
- [Data Loss Prevention (DLP) Software](https://www.g2.com/categories/data-loss-prevention-dlp)
- [HIPAA Compliant Messaging Software](https://www.g2.com/categories/hipaa-compliant-messaging)
- [Email Anti-spam Software](https://www.g2.com/categories/email-anti-spam)
- [Cloud Email Security Solutions](https://www.g2.com/categories/cloud-email-security)
- [Cloud File Security Software](https://www.g2.com/categories/cloud-file-security)
- [Intelligent Email Protection Software](https://www.g2.com/categories/intelligent-email-protection)