# Best Email Security Software 2026 | Capterra > Find the top Email Security software of 2026 on Capterra. Based on millions of verified user reviews - compare and filter for whats important to you to find the best tools for your needs. Source: https://www.capterra.com/email-security-software --- # Best Email Security Software For more information consult our [Email Security Buyers Guide](#buyers-guide-content) [4.9 (50)](https://www.capterra.com/p/206740/Libraesva-Email-Security/reviews/) Protect your business from disruption, financial loss and reputational damage. [Learn more about Libraesva Email Security](https://www.capterra.com/p/206740/Libraesva-Email-Security/) [4.5 (8)](https://www.capterra.com/p/247834/Agari-Phishing-Defense/#reviews) Fortra's Agari Phishing Defense stops sophisticated email attacks from being delivered to employee inboxes. [Learn more about Fortra's Cloud Email Protection](https://www.capterra.com/p/247834/Agari-Phishing-Defense/) 0.0 (0) Fortra's Agari Brand Protection can automate and simplify DMARC email authentication to protect against brand attacks. [Learn more about Fortra’s DMARC Protection](https://www.capterra.com/p/247907/Agari-Brand-Protection/) [4.9 (7)](https://www.capterra.com/p/10011525/Guardz/reviews/) Guardz empowers MSPs and IT Service Providers to deliver comprehensive cybersecurity protection from one unified platform.  [Learn more about Guardz](https://www.capterra.com/p/10011525/Guardz/) [4.9 (12)](https://www.capterra.com/p/178083/CLEARNETWORK/#reviews) Malicious email is a major threat. ContentCatcher protects your organization from phishing, spam, ransomware, URLs, attachments & more. [Learn more about ContentCatcher](https://www.capterra.com/p/178083/CLEARNETWORK/) [4.8 (25)](https://www.capterra.com/p/185271/EasyDMARC/reviews/) EasyDMARC is a cloud-native B2B solution for securing customers' domain and email infrastructure. [Learn more about EasyDMARC](https://www.capterra.com/p/185271/EasyDMARC/) [4.6 (38)](https://www.capterra.com/p/227959/Virtru/reviews/) Virtru's flexible, easy-to-use, and trusted end-to-end encryption technologies govern access to data throughout its full lifecycle. [Learn more about Virtru](https://www.capterra.com/p/227959/Virtru/) [## ESET Endpoint Security](https://www.capterra.com/p/151915/ESET-Endpoint-Security/) [4.7 (1169)](https://www.capterra.com/p/151915/ESET-Endpoint-Security/reviews/) Great for: Anomaly/Malware Detection Advanced email security for organizations with 250+ employees protecting against data breaches and cyber threats across devices. [Learn more about ESET Endpoint Security](https://www.capterra.com/p/151915/ESET-Endpoint-Security/) 82% of users recommend this product [## Zoho Mail](https://www.capterra.com/p/174694/Zoho-Mail/) [4.5 (1061)](https://www.capterra.com/p/174694/Zoho-Mail/reviews/) Great for: Value for Money Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.  [Learn more about Zoho Mail](https://www.capterra.com/p/174694/Zoho-Mail/) 81% of users recommend this product [## SendGrid](https://www.capterra.com/p/204113/SendGrid/) [4.2 (753)](https://www.capterra.com/p/204113/SendGrid/reviews/) Popular SendGrid is a cloud-based email API, delivery and marketing platform that helps businesses manage email communication needs. [Learn more about SendGrid](https://www.capterra.com/p/204113/SendGrid/) [## SpamTitan](https://www.capterra.com/p/168436/SpamTitan/) [4.6 (563)](https://www.capterra.com/p/168436/SpamTitan/reviews/) Great for: Spam Quarantine SpamTitan is a cloud based email security solution. Easy to use and very effective blocking Email-Spam, malware and phishing attacks. [Learn more about SpamTitan](https://www.capterra.com/p/168436/SpamTitan/) 84% of users recommend this product [## Cloudflare](https://www.capterra.com/p/155191/Cloudflare/) [4.7 (517)](https://www.capterra.com/p/155191/Cloudflare/reviews/) Great for: Small Business Cloudflare is a web performance and security company on a mission to build a better Internet. [Learn more about Cloudflare](https://www.capterra.com/p/155191/Cloudflare/) 89% of users recommend this product [## Hoxhunt](https://www.capterra.com/p/233248/Hoxhunt/) [4.9 (337)](https://www.capterra.com/p/233248/Hoxhunt/reviews/) Great for: Reporting/Analytics Hoxhunt automatically assigns quick, gamified training that dramatically increases engagement and builds long-term security behaviors. [Learn more about Hoxhunt](https://www.capterra.com/p/233248/Hoxhunt/) 97% of users recommend this product [## AVG Internet Security Business Edition](https://www.capterra.com/p/199318/AVG-Internet-Security-Business-Edition/) [4.3 (286)](https://www.capterra.com/p/199318/AVG-Internet-Security-Business-Edition/reviews/) Good for: Small Business Protect your business from viruses, ransomware, and email threats including spam, phishing, and more. [Learn more about AVG Internet Security Business Edition](https://www.capterra.com/p/199318/AVG-Internet-Security-Business-Edition/) [## Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/) [4.6 (236)](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/reviews/) Good for: Email Attachment Protection Microsoft Defender for Office 365 protects all of Office 365 against advanced threats. [Learn more about Microsoft Defender for Office 365](https://www.capterra.com/p/219685/Microsoft-Defender-for-Office-365/) [## eM Client](https://www.capterra.com/p/160239/eM-Client/) [4.2 (187)](https://www.capterra.com/p/160239/eM-Client/reviews/) Good for: Ease of Use Desktop email client that supports S/MIME and PGP encryption and signatures and secure connection via TLS 1.2 and 1.3 [Learn more about eM Client](https://www.capterra.com/p/160239/eM-Client/) [## Symantec Email Security.cloud](https://www.capterra.com/p/168448/Email-Security-cloud/) [4.5 (159)](https://www.capterra.com/p/168448/Email-Security-cloud/reviews/) Good for: Customer Service Threat and anti-spam protection system intended to defend your email from phishing, ransomware, and business email compromise. [Learn more about Symantec Email Security.cloud](https://www.capterra.com/p/168448/Email-Security-cloud/) [## Zerospam](https://www.capterra.com/p/173157/ZEROSPAM/) [4.8 (135)](https://www.capterra.com/p/173157/ZEROSPAM/reviews/) Great for: Ease of Use Zerospam The AI-driven email security solution [Learn more about Zerospam](https://www.capterra.com/p/173157/ZEROSPAM/) 94% of users recommend this product [## Proton Mail](https://www.capterra.com/p/201276/ProtonMail/) [4.5 (122)](https://www.capterra.com/p/201276/ProtonMail/reviews/) Great for: Encryption ProtonMail is the world's largest secure email provider. We protect the data and communications of millions of organizations. [Learn more about Proton Mail](https://www.capterra.com/p/201276/ProtonMail/) [## Selzy](https://www.capterra.com/p/255420/Selzy/) [4.8 (116)](https://www.capterra.com/p/255420/Selzy/reviews/) Great for: Customer Service Selzy is an ecosystem of easy-to-use marketing automation tools that helps small and medium businesses grow. [Learn more about Selzy](https://www.capterra.com/p/255420/Selzy/) 91% of users recommend this product [## NeoCertified](https://www.capterra.com/p/155842/NeoCertified-Secure-Email/) [4.9 (104)](https://www.capterra.com/p/155842/NeoCertified-Secure-Email/reviews/) Great for: Features Secure email encryption for businesses of all industries, including healthcare, finance, legal, education, and non-profit. [Learn more about NeoCertified](https://www.capterra.com/p/155842/NeoCertified-Secure-Email/) 98% of users recommend this product [## Cypherdog Encryption](https://www.capterra.com/p/268012/Cypherdog-E-mail-Encryption/) [4.8 (103)](https://www.capterra.com/p/268012/Cypherdog-E-mail-Encryption/reviews/) Great for: Threat Protection Cypherdog's Encryption solution provides complete email protection by encrypting all email messages and attachments. [Learn more about Cypherdog Encryption](https://www.capterra.com/p/268012/Cypherdog-E-mail-Encryption/) 94% of users recommend this product [## DNSFilter](https://www.capterra.com/p/156036/DNSFilter/) [4.7 (86)](https://www.capterra.com/p/156036/DNSFilter/reviews/) DNS-based threat protection & content filtering. Driven by realtime A.I. Built for MSPs and Enterprise. [Learn more about DNSFilter](https://www.capterra.com/p/156036/DNSFilter/) [## MimeCast Email Security](https://www.capterra.com/p/119826/MimeCast-Email-Security/) [4.3 (80)](https://www.capterra.com/p/119826/MimeCast-Email-Security/reviews/) Protect emails by mitigating risk and utilizing email encryption and threat protection [Learn more about MimeCast Email Security](https://www.capterra.com/p/119826/MimeCast-Email-Security/) [## Xeams](https://www.capterra.com/p/182895/Xeams/) [4.7 (74)](https://www.capterra.com/p/182895/Xeams/reviews/) An email server with a powerful built in spam and junk message filtering engine that eliminates up to 99% of spam upon installation. [Learn more about Xeams](https://www.capterra.com/p/182895/Xeams/) Page 1 of 8 ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox. Filter (184) Products: Sort By: Sponsored * * * Plan Type Free Trial Popular 85% of professionals opt for a 30-day trial before the software purchase Other subsciption plans: Free Version Monthly Subscription Annual Subscription One-Time License Key Features All key features Popular We have selected the most important and critical features as defined by Capterra user reviews AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting Deployment Cloud, SaaS, Web-Based Desktop Mac Desktop Windows Desktop Linux On-Premise Windows On-Premise Linux Desktop Chromebook Mobile Android Mobile iPhone Mobile iPad Related Software Category: [Anti-spam Software](https://www.capterra.com/anti-spam-software/)[Website Accessibility Software](https://www.capterra.com/website-accessibility-software/)[VPN Software](https://www.capterra.com/vpn-software/)[Firewall Software](https://www.capterra.com/firewall-software/)[Website Security Software](https://www.capterra.com/website-security-software/)[DDoS Protection Software](https://www.capterra.com/ddos-protection-software/)[Network Access Control (NAC) Software](https://www.capterra.com/network-access-control-software/)[Secure Email Gateway Software](https://www.capterra.com/secure-email-gateway-software/)[Cloud Access Security Broker (CASB) Software](https://www.capterra.com/cloud-access-security-broker-casb-software/)