# Top Free Email Encryption Software ## 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. [ Proton Mail For Business ](https://www.g2.com/products/proton-mail-for-business/reviews) By [Proton AG](https://www.g2.com/sellers/proton-ag) [ 4.6/5(449) ](https://www.g2.com/products/proton-mail-for-business/reviews) What do users say? Users consistently praise the product for its security and privacy, highlighting the peace of mind that comes from end-to-end encryption and data protection under Swiss laws. Many appreciate the ease Pros and Cons [ Ease of Use (3) ](https://www.g2.com/products/proton-mail-for-business/reviews?qs=pros-and-cons)[ Compatibility Issues (1) ](https://www.g2.com/products/proton-mail-for-business/reviews?qs=pros-and-cons) [ Paubox ](https://www.g2.com/products/paubox/reviews) By [Paubox](https://www.g2.com/sellers/paubox) [ 4.9/5(602) ](https://www.g2.com/products/paubox/reviews) What do users say? Users consistently praise the product for its seamless integration with existing email systems, allowing for automatic encryption without extra steps for recipients. This simplicity enhances user expe Pros and Cons [ Ease of Use (216) ](https://www.g2.com/products/paubox/reviews?qs=pros-and-cons)[ Expensive (50) ](https://www.g2.com/products/paubox/reviews?qs=pros-and-cons) [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) [ Proofpoint Core Email... ](https://www.g2.com/products/proofpoint-core-email-protection/reviews) By [Proofpoint](https://www.g2.com/sellers/proofpoint) [ 4.6/5(601) ](https://www.g2.com/products/proofpoint-core-email-protection/reviews) What do users say? Users consistently praise the product for its advanced threat detection and robust phishing protection, which effectively blocks malicious emails before they reach users. The intuitive interface and d Pros and Cons [ Effective (52) ](https://www.g2.com/products/proofpoint-core-email-protection/reviews?qs=pros-and-cons)[ Poor Customer Support (19) ](https://www.g2.com/products/proofpoint-core-email-protection/reviews?qs=pros-and-cons) [ Tresorit ](https://www.g2.com/products/tresorit/reviews) By [Tresorit](https://www.g2.com/sellers/tresorit) [ 4.5/5(260) ](https://www.g2.com/products/tresorit/reviews) What do users say? Users consistently praise Tresorit for its strong security and ease of use, highlighting the robust end-to-end encryption that ensures only authorized individuals can access their files. The intuitive Pros and Cons [ Ease of Use (98) ](https://www.g2.com/products/tresorit/reviews?qs=pros-and-cons)[ Access Limitations (24) ](https://www.g2.com/products/tresorit/reviews?qs=pros-and-cons) [ Kiteworks ](https://www.g2.com/products/kiteworks/reviews) By [Kiteworks](https://www.g2.com/sellers/kiteworks) [ 4.4/5(121) ](https://www.g2.com/products/kiteworks/reviews) What do users say? Users consistently praise Kiteworks for its strong security features and compliance controls, which provide peace of mind when sharing sensitive data. The platform's ability to integrate seamlessly wi Pros and Cons [ Security (98) ](https://www.g2.com/products/kiteworks/reviews?qs=pros-and-cons)[ Complex Usability (60) ](https://www.g2.com/products/kiteworks/reviews?qs=pros-and-cons) [ KnowBe4 Cloud Email... ](https://www.g2.com/products/knowbe4-cloud-email-security-formerly-egress/reviews) By [KnowBe4, Inc.](https://www.g2.com/sellers/knowbe4-inc) [ 4.5/5(74) ](https://www.g2.com/products/knowbe4-cloud-email-security-formerly-egress/reviews) What do users say? Users consistently praise the product for its ease of use and effective email security, highlighting features like visual risk indicators and seamless integration with Outlook. Many appreciate how it Pros and Cons [ Email Security (7) ](https://www.g2.com/products/knowbe4-cloud-email-security-formerly-egress/reviews?qs=pros-and-cons)[ Dashboard Issues (2) ](https://www.g2.com/products/knowbe4-cloud-email-security-formerly-egress/reviews?qs=pros-and-cons) [ RMail ](https://www.g2.com/products/rmail/reviews) By [RPost](https://www.g2.com/sellers/rpost) [ 4.9/5(63) ](https://www.g2.com/products/rmail/reviews) What do users say? Users consistently praise the product for its ease of use and email encryption capabilities, which allow for secure communication without requiring recipients to install additional software. Many appr Pros and Cons [ Ease of Use (1) ](https://www.g2.com/products/rmail/reviews?qs=pros-and-cons)[ Confusing (1) ](https://www.g2.com/products/rmail/reviews?qs=pros-and-cons) [ LuxSci ](https://www.g2.com/products/luxsci/reviews) By [LuxSci](https://www.g2.com/sellers/luxsci) [ 4.7/5(83) ](https://www.g2.com/products/luxsci/reviews) What do users say? Users consistently praise the excellent customer support provided by LuxSci, highlighting the quick response times and knowledgeable assistance that help resolve issues efficiently. Many appreciate th Pros and Cons [ Customer Support (21) ](https://www.g2.com/products/luxsci/reviews?qs=pros-and-cons)[ Email Issues (5) ](https://www.g2.com/products/luxsci/reviews?qs=pros-and-cons) [ Hornetsecurity 365 Total... ](https://www.g2.com/products/hornetsecurity-365-total-protection/reviews) By [Hornetsecurity](https://www.g2.com/sellers/hornetsecurity) [ 4.6/5(65) ](https://www.g2.com/products/hornetsecurity-365-total-protection/reviews) What do users say? Users consistently praise the product for its reliable security and easy integration with Microsoft 365, which significantly reduces spam and phishing threats. The intuitive interface and comprehensiv Pros and Cons [ Email Security (7) ](https://www.g2.com/products/hornetsecurity-365-total-protection/reviews?qs=pros-and-cons)[ User Interface (3) ](https://www.g2.com/products/hornetsecurity-365-total-protection/reviews?qs=pros-and-cons) [ PreVeil File Sharing and Email ](https://www.g2.com/products/preveil-file-sharing-and-email/reviews) By [PreVeil](https://www.g2.com/sellers/preveil) [ 4.5/5(10) ](https://www.g2.com/products/preveil-file-sharing-and-email/reviews) What do users say? Users consistently praise the ease of use and secure file sharing capabilities of PreVeil, noting that it integrates seamlessly into existing workflows without major disruptions. The software's strong Pros and Cons [ Customer Support (1) ](https://www.g2.com/products/preveil-file-sharing-and-email/reviews?qs=pros-and-cons)[ Inadequate Security (1) ](https://www.g2.com/products/preveil-file-sharing-and-email/reviews?qs=pros-and-cons) [ NeoCertified Secure Email ](https://www.g2.com/products/neocertified-secure-email/reviews) By [NeoCertified](https://www.g2.com/sellers/neocertified) [ 4.8/5(101) ](https://www.g2.com/products/neocertified-secure-email/reviews) What do users say? Users consistently praise the ease of use and integration with Outlook, making secure email communication straightforward and efficient. Many appreciate the reliable customer support and the ability t Pros and Cons [ Ease of Use (2) ](https://www.g2.com/products/neocertified-secure-email/reviews?qs=pros-and-cons)[ Email Encryption Issues (1) ](https://www.g2.com/products/neocertified-secure-email/reviews?qs=pros-and-cons) [ Encyro ](https://www.g2.com/products/encyro/reviews) By [Encyro](https://www.g2.com/sellers/encyro) [ 4.7/5(29) ](https://www.g2.com/products/encyro/reviews) What do users say? Users consistently praise the product for its ease of use and secure document sharing, making it simple for clients to send and receive sensitive information without needing to create accounts. The in [ Spike ](https://www.g2.com/products/spike/reviews) By [Spike](https://www.g2.com/sellers/spike) [ 4.6/5(262) ](https://www.g2.com/products/spike/reviews) What do users say? Users consistently praise Spike for its chat-style interface that transforms email communication into a more intuitive experience, making it easier to manage conversations and stay organized. The app' Pros and Cons [ Ease of Use (47) ](https://www.g2.com/products/spike/reviews?qs=pros-and-cons)[ Missing Features (19) ](https://www.g2.com/products/spike/reviews?qs=pros-and-cons) [ INKY Email Security Platform ](https://www.g2.com/products/inky-email-security-platform/reviews) By [Kaseya](https://www.g2.com/sellers/kaseya) [ 4.1/5(36) ](https://www.g2.com/products/inky-email-security-platform/reviews) What do users say? Users consistently praise INKY for its strong phishing protection and user-friendly alerts, which help end users easily identify suspicious emails. The platform's integration with Microsoft 365 and st Pros and Cons [ Cross-Platform Compatibility (1) ](https://www.g2.com/products/inky-email-security-platform/reviews?qs=pros-and-cons)[ Configuration Difficulties (1) ](https://www.g2.com/products/inky-email-security-platform/reviews?qs=pros-and-cons) [ Canary Mail ](https://www.g2.com/products/canary-mail/reviews) By [Canary Mail](https://www.g2.com/sellers/canary-mail) [ 4.5/5(53) ](https://www.g2.com/products/canary-mail/reviews) What do users say? Users consistently praise the ease of use and robust features of Canary Mail, highlighting its ability to manage multiple accounts seamlessly and provide strong security through encryption. The integr Pros and Cons [ Ease of Use (28) ](https://www.g2.com/products/canary-mail/reviews?qs=pros-and-cons)[ Email Issues (8) ](https://www.g2.com/products/canary-mail/reviews?qs=pros-and-cons) [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. 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