# Best Intelligent Email Protection Software for Small Business - Page 2 ## How Many Intelligent Email Protection Software Products Does G2 Track? **Total Products under this Category:** 49 ### Category Stats (Aug 2026) - **Average Rating:** 4.45/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** INKY Email Security Platform (+1.43%) - Among all products in this category, INKY Email Security Platform recorded the largest rating increase compared to last month _Last updated: August 06, 2026_ ## How Does G2 Rank Intelligent Email Protection Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 3,500+ Authentic Reviews - 49+ 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 Intelligent Email Protection Software ![G2 Grid® for Intelligent Email Protection Software plotting products by satisfaction and market presence](https://www.g2.com/categories/intelligent-email-protection/grids.png?focus%5B%5D=112257&focus%5B%5D=1456607&focus%5B%5D=129100&focus%5B%5D=127460&focus%5B%5D=127324&focus%5B%5D=115555&focus%5B%5D=81245&focus%5B%5D=1244418) Highlighted products: Check Point Email Security, Barracuda Email Protection, Libraesva Email Security, Hornetsecurity 365 Total Protection, IRONSCALES, Microsoft Defender for Office 365, INKY Email Security Platform, and Yandex Mail. Underlying data: [Grid® JSON](https://www.g2.com/categories/intelligent-email-protection/grids.json?focus%5B%5D=check-point-email-security&focus%5B%5D=barracuda-barracuda-email-protection&focus%5B%5D=libraesva-email-security&focus%5B%5D=hornetsecurity-365-total-protection&focus%5B%5D=ironscales&focus%5B%5D=microsoft-microsoft-defender-for-office-365&focus%5B%5D=inky-email-security-platform&focus%5B%5D=yandex-mail&segment=small-business) **Sponsored** ### IRONSCALES IRONSCALES is a cloud-native email security platform that helps enterprises and MSPs close gaps with mailbox-level detection, autonomous remediation, and built-in user training. It combines AI and human insights that continuously learn from user behavior, message context, and analyst feedback to identify advanced threats like BEC, account takeovers, impersonation, and other advanced phishing attacks. IRONSCALES is headquartered in Atlanta, Georgia and is proud to serve more than 17,000 customers globally. IRONSCALES leverages adaptive AI and its Agentic AI engine, Themis, to drive autonomous, mailbox-level remediation with customizable automation. Smart clustering, context-driven decisioning, and user-reported inputs enable Themis to remediate threats in real time while preserving analyst oversight and control. Designed for rapid deployment via API, IRONSCALES integrates with existing security stacks without requiring MX record changes. To reduce risk, improve SOC efficiency, and support a proactive security culture, its comprehensive capabilities also include: - Phishing Simulations - Security Awareness Training - DMARC management - Deepfake Live Protection - Generative AI tools [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=2341&secure%5Bchosen_at%5D=2026-08-06T17%3A20%3A30Z&secure%5Bdisplayable_resource_id%5D=2341&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=2341&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=127324&secure%5Bresource_id%5D=2341&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fintelligent-email-protection%2Fsmall-business%3Fpage%3D2&secure%5Btoken%5D=c7d4eb9e92df67eb10a5085b189a9b658e68b7bd26fffd4b05d1b2f3880cff02&secure%5Burl%5D=https%3A%2F%2Fsecure.ironscales.com%2F90-day-scan-back%3Futm_source%3Dg2%26utm_medium%3Daffiliate%26utm_campaign%3Dg2-ads&secure%5Burl_type%5D=custom_url) ### [IronVest InboxGuard](https://www.g2.com/products/ironvest-inboxguard/reviews) IronVest InboxGuard, previously "Retruster", is the only AI-powered anti-phishing solution that delivers security training both contextually and in real-time on actual phishing emails that your organization might receive. We layer our solution with an immersive security training program that offers consistently updated, relevant, and highly engaging content that is specifically designed to change employee behavior and promote a strong security culture throughout your enterprise. **Average Rating:** 4.8/5.0 **Total Reviews:** 24 #### How Do G2 Users Rate IronVest InboxGuard? - **Has the product been a good partner in doing business?:** 10.0/10 (Category avg: 9.3/10) - **Activity Monitoring:** 9.6/10 (Category avg: 8.9/10) - **Intelligence Reporting:** 8.8/10 (Category avg: 8.8/10) - **Policy Enforcement:** 8.1/10 (Category avg: 8.8/10) #### Who Is the Company Behind IronVest InboxGuard? - **Seller:** [Retruster Ltd](https://www.g2.com/sellers/retruster-ltd) - **Year Founded:** 2017 - **HQ Location:** New York, NY - **Twitter:** @IronVestHQ 279 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b85001d95261838e4459015dcc6a1c1c5e97fcecb7332c4d4de616986b9dbcba&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F11254725%2F&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 67% Small, 29% Medium #### What Are Recent G2 Reviews of IronVest InboxGuard? **["Absolutely amazing product!"](https://www.g2.com/survey_responses/ironvest-inboxguard-review-5393328)** **Rating:** 5.0/5.0 stars _— Verified User in Higher Education_ [Read full review](https://www.g2.com/survey_responses/ironvest-inboxguard-review-5393328) **["Retruster is a critical part of our email security"](https://www.g2.com/survey_responses/ironvest-inboxguard-review-6680106)** **Rating:** 5.0/5.0 stars _— Verified User in Information Technology and Services_ [Read full review](https://www.g2.com/survey_responses/ironvest-inboxguard-review-6680106) #### What Are G2 Users Discussing About IronVest InboxGuard? - [What is Retruster used for?](https://www.g2.com/discussions/what-is-retruster-used-for) ### [Email Security For Office 365](https://www.g2.com/products/email-security-for-office-365/reviews) Constant Edge's Email Security for Office 365 is a comprehensive solution designed to protect organizations using Microsoft's cloud email platform from advanced email threats. By integrating seamlessly with Office 365, it offers multi-layered security measures to safeguard users against phishing, malware, and other malicious activities. Key Features and Functionality: - Multi-layered Email Security: Employs enterprise-grade protection at both the email gateway and inbox levels, utilizing machine learning algorithms to detect and block threats. - Secure Email Encryption: Automatically encrypts sensitive email data to prevent unauthorized access during transmission. - Advanced Threat Protection: Provides targeted defense against malicious URLs and attachments through industry-leading sandboxing technologies. - Email Archiving: Securely stores all internal and external communications for up to 10 years, facilitating quick and easy searches to meet legal compliance requirements. - Automated Incident Response: Enables automatic responses to employee-reported emails, with single-click rapid remediation capabilities for administrators. - Advanced Threat Assessment: Detects and removes email threats up to 90 days after delivery, protecting against dormant threats in user inboxes. Primary Value and User Solutions: This solution addresses the critical need for robust email security within Office 365 environments by providing: - Enhanced Protection: Safeguards users from sophisticated email threats, reducing the risk of data breaches and financial loss. - Regulatory Compliance: Ensures organizations meet legal and industry standards through secure email archiving and encryption. - Operational Continuity: Maintains uninterrupted email access and functionality, even during potential outages or attacks. - Simplified Management: Offers easy deployment and management, allowing IT teams to efficiently oversee email security without extensive training. By implementing Constant Edge's Email Security for Office 365, organizations can significantly enhance their email security posture, ensuring the safety and integrity of their communications. **Average Rating:** 4.4/5.0 **Total Reviews:** 29 #### How Do G2 Users Rate Email Security For Office 365? - **Has the product been a good partner in doing business?:** 8.0/10 (Category avg: 9.3/10) - **Activity Monitoring:** 9.3/10 (Category avg: 8.9/10) - **Intelligence Reporting:** 8.2/10 (Category avg: 8.8/10) - **Policy Enforcement:** 9.0/10 (Category avg: 8.8/10) #### Who Is the Company Behind Email Security For Office 365? - **Seller:** [Constant Edge](https://www.g2.com/sellers/constant-edge) - **Year Founded:** 2016 - **HQ Location:** Edinburgh - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Information Technology and Services - **Company Size:** 52% Small, 34% Medium #### What Do G2 Reviewers Say About Email Security For Office 365? _AI-generated summary from verified user reviews_ ##### Pros - Users appreciate the **helpful alerts** that enhance email safety by notifying about potential phishing threats. - Users find the **cost efficiency** of Email Security for Office 365 beneficial, especially with business premium plans. - Users value the **ease of use** of Email Security For Office 365, simplifying phishing email identification and enhancing safety. - Users value the **phishing protection** which educates them on identifying risks in emails and enhances their security awareness. ##### Cons - Users find the **difficult training** necessary for Email Security For Office 365 to be a hurdle in usage. - Users report **email classification issues** , with some emails incorrectly flagged or missed entirely by the security system. - Users experience **poor detection** as some emails are misclassified or bypass security checks entirely. #### What Are Recent G2 Reviews of Email Security For Office 365? **["Email Security for Office 365"](https://www.g2.com/survey_responses/email-security-for-office-365-review-9480268)** **Rating:** 5.0/5.0 stars _— Sonny B._ [Read full review](https://www.g2.com/survey_responses/email-security-for-office-365-review-9480268) **["Email links are identified and feels safer"](https://www.g2.com/survey_responses/email-security-for-office-365-review-11733276)** **Rating:** 5.0/5.0 stars _— Neil C._ [Read full review](https://www.g2.com/survey_responses/email-security-for-office-365-review-11733276) - [‹ Prev‹ Prev](/categories/intelligent-email-protection/small-business?order=g2_score#product-list) - [1](/categories/intelligent-email-protection/small-business?order=g2_score#product-list) - 2 - Next ›Next › Spotlight Categories [Auto Dialer Software](https://www.g2.com/categories/auto-dialer) [Employer of Record (EOR) Software](https://www.g2.com/categories/employer-of-record-eor) [Professional Services Automation Software](https://www.g2.com/categories/professional-services-automation) [Digital Experience Platforms (DXP)](https://www.g2.com/categories/digital-experience-platforms-dxp) [Bot Platforms Software](https://www.g2.com/categories/bot-platforms) Similar Categories - [Secure Email Gateway](/categories/secure-email-gateway) - [Cloud Email Security](/categories/cloud-email-security) - [Email Anti-spam](/categories/email-anti-spam) - [Email Encryption](/categories/email-encryption) [Browse Intelligent Email Protection Themes](/categories/intelligent-email-protection/themes)