# 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:** 65 ### Category Stats (Aug 2026) - **Average Rating:** 4.44/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Sophos Email (+0.54%) - Among all products in this category, Sophos Email recorded the largest rating increase compared to last month _Last updated: August 05, 2026_ ## How Does G2 Rank Secure Email Gateway Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 3,400+ Authentic Reviews - 65+ 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 ![G2 Grid® for Secure Email Gateway Software plotting products by satisfaction and market presence](https://www.g2.com/categories/secure-email-gateway/grids.png?focus%5B%5D=25519&focus%5B%5D=10847&focus%5B%5D=67720&focus%5B%5D=75596&focus%5B%5D=81906&focus%5B%5D=129100&focus%5B%5D=3675&focus%5B%5D=30562) Highlighted products: Paubox, Sophos Email, Microsoft Exchange, Cloudflare One (SASE), LuxSci, Libraesva Email Security, Virtru Email Encryption, and Proofpoint Core Email Protection. 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=luxsci&focus%5B%5D=libraesva-email-security&focus%5B%5D=virtru-email-encryption&focus%5B%5D=proofpoint-core-email-protection&segment=small-business) **Sponsored** ### Barracuda Email Protection Barracuda Email Protection helps organizations of all sizes and industries defend against increasingly sophisticated, frequent, and targeted attacks, including phishing, ransomware, business email compromise (BEC), and other threats. Email remains the top attack vector, and securing it has become an urgent priority, especially as cybercriminals leverage AI to improve and scale their attacks.     Barracuda Email Protection defends against all types of email threats with a multi-layered approach that includes both pre- and post-delivery defenses, as well as tools to enhance user security awareness and education. It combines AI-powered threat prevention and detection, automated incident response, DMARC reporting, and much more.   [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=1086&secure%5Bchosen_at%5D=2026-08-09T21%3A22%3A21Z&secure%5Bdisplayable_resource_id%5D=1086&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=1086&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1456607&secure%5Bresource_id%5D=1086&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fsecure-email-gateway%2Fsmall-business%3Fpage%3D2%26segment%3Dsmall-business&secure%5Btoken%5D=60def6eb699f245359fa8bb9bfd65a78cc0dc410e2c1283074420f6ff4ff880d&secure%5Burl%5D=https%3A%2F%2Fwww.barracuda.com%2Fproducts%2Femail-protection%2Fintegrated-email-protection%3Futm_source%3Dg2%26utm_medium%3Dcpc%26utm_campaign%3DB%3ADG%7CTH%3A%7CR%3A%7CPS%3AEP%7CP%3A%7CPL%3AG2%7CC%3ASP%7CTY%3AP%7CICP%3A%7CL%3AEN%7CA%3A%7CN%3A%7C%26utm_adgroup%3DB%3ADG%7CTH%3A%7CR%3A%7CPS%3AEP%7CP%3A%7CPL%3AG2%7CC%3ASP%7CTY%3AP%7CICP%3A%7CL%3AEN%7CA%3A%7CN%3A%7CT%3A%7C&secure%5Burl_type%5D=custom_url) ### [Phish Protection by DuoCircle](https://www.g2.com/products/phish-protection-by-duocircle/reviews) Phish Protection Email Security with Advanced Threat Protection, is a cloud-based email protection suite for your businesses - that stops phishing attacks, malware, ransomware, viruses via email, malicious links, fraud, spam, spoofing and other malicious threats over email - all in real-time, and without the need to install any expensive tools or software. **Average Rating:** 4.7/5.0 **Total Reviews:** 43 #### How Do G2 Users Rate Phish Protection by DuoCircle? - **Advanced Threat Intelligence/Protection:** 8.3/10 (Category avg: 8.9/10) - **SURLB/URIBL Filtering:** 9.0/10 (Category avg: 8.9/10) - **Has the product been a good partner in doing business?:** 9.7/10 (Category avg: 8.8/10) - **Quarantine:** 8.3/10 (Category avg: 8.9/10) #### Who Is the Company Behind Phish Protection by DuoCircle? - **Seller:** [DuoCircle LLC](https://www.g2.com/sellers/duocircle-llc) - **Year Founded:** 2014 - **HQ Location:** San Diego, CA - **Twitter:** @duocirclellc 130 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=8e4605f46895e23ff11f77078613f0250d987ad76b735a02760a3296aef1a1c6&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fduocircle%2Fabout&secure%5Burl_type%5D=linkedin_company_website) 13 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Computer & Network Security, Information Technology and Services - **Company Size:** 63% Small, 33% Medium #### What Are Recent G2 Reviews of Phish Protection by DuoCircle? **["Excellent and easy to implement / easy to use solution"](https://www.g2.com/survey_responses/phish-protection-by-duocircle-review-7296860)** **Rating:** 5.0/5.0 stars _— Verified User in Arts and Crafts_ [Read full review](https://www.g2.com/survey_responses/phish-protection-by-duocircle-review-7296860) **["Flawless and transparent user experience"](https://www.g2.com/survey_responses/phish-protection-by-duocircle-review-4208920)** **Rating:** 5.0/5.0 stars _— Hasso R._ [Read full review](https://www.g2.com/survey_responses/phish-protection-by-duocircle-review-4208920) #### What Are G2 Users Discussing About Phish Protection by DuoCircle? - [Which software is used for phishing attack?](https://www.g2.com/discussions/which-software-is-used-for-phishing-attack) - [What does phishing software do?](https://www.g2.com/discussions/what-does-phishing-software-do) - [What is phishing protection?](https://www.g2.com/discussions/what-is-phishing-protection) - [What are 5 features of phishing?](https://www.g2.com/discussions/what-are-5-features-of-phishing) - [‹ Prev‹ Prev](/categories/secure-email-gateway/small-business?order=g2_score#product-list) - [1](/categories/secure-email-gateway/small-business?order=g2_score#product-list) - 2 - Next ›Next › Spotlight Categories [Anti Money Laundering Software](https://www.g2.com/categories/anti-money-laundering) [Digital Experience Platforms (DXP)](https://www.g2.com/categories/digital-experience-platforms-dxp) [Workforce Management Software](https://www.g2.com/categories/workforce-management) [Threat Intelligence Software](https://www.g2.com/categories/threat-intelligence) [Accounting Software](https://www.g2.com/categories/accounting) Similar Categories - [Cloud Email Security](/categories/cloud-email-security) - [Email Anti-spam](/categories/email-anti-spam) - [Email Encryption](/categories/email-encryption) - [Intelligent Email Protection](/categories/intelligent-email-protection) [Browse Secure Email Gateway Themes](/categories/secure-email-gateway/themes)