Total Products under this Category: 94
Last updated: September 01, 2026
Why You Can Trust G2's Software 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.
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)
WeCloud Email Security is a complete solution for security, validation and management of e-mail that works on all platforms.
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.
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.
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.
