Best Secure Email Gateway Software for Small Business - Page 2

How Many Secure Email Gateway Software Products Does G2 Track?

Total Products under this Category: 87

Category Stats (Oct 2026)

• Average Rating: 4.48/5 The average rating of products in this category, based on all submitted ratings
• Top Trending Product: Barracuda Email Gateway Defense (+0.5%) - Among all products in this category, Barracuda Email Gateway Defense recorded the largest rating increase compared to last month

Last updated: October 01, 2026

How Does G2 Rank Secure Email Gateway Software Products?

Why You Can Trust G2's Software Rankings:

• 30 Analysts and Data Experts
• 3,500+ Authentic Reviews
• 87+ 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 Secure Email Gateway Software

Highlighted products: Paubox, Sophos Email, Microsoft Exchange, Cloudflare One (SASE), Proofpoint Core Email Protection, LibraCyber Email Security, LuxSci, and Virtru Email Encryption.

Underlying data: [Grid® JSON](https://www.g2.com/categories/secure-email-gateway/grids.json?focus%5B%5D=paubox&focus%5B%5D=sophos-email&focus%5B%5D=microsoft-microsoft-exchange&focus%5B%5D=cloudflare-one-sase&focus%5B%5D=proofpoint-core-email-protection&focus%5B%5D=libracyber-email-security&focus%5B%5D=luxsci&focus%5B%5D=virtru-email-encryption&segment=small-business)