# 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/s/android --- # 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [5.0 (1)](https://www.capterra.com/p/250406/Heimdal-Email-Security/#reviews) A versatile email protection solution that combines Office 365 support with proprietary threat prevention in the cloud and on-premise. [Learn more about Heimdal Email Security](https://www.capterra.com/p/250406/Heimdal-Email-Security/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 0.0 (0) Fidelis Network enhances email security by detecting threats in real-time, neutralizing malware, and preventing data exfiltration. [Learn more about Fidelis Network](https://www.capterra.com/p/10027695/Fidelis-Network/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 0.0 (0) The Data Krypter is an encryption software that protects data by encrypting files, folders and text. [Learn more about Data Krypter](https://www.capterra.com/p/10022486/Data-Kryptere/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [## 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/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 82% 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/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 81% recommend this product [## SendGrid](https://www.capterra.com/p/204113/SendGrid/) [4.2 (753)](https://www.capterra.com/p/204113/SendGrid/reviews/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [## SpamTitan](https://www.capterra.com/p/168436/SpamTitan/) [4.6 (563)](https://www.capterra.com/p/168436/SpamTitan/reviews/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 84% recommend this product [## Cloudflare](https://www.capterra.com/p/155191/Cloudflare/) [4.7 (516)](https://www.capterra.com/p/155191/Cloudflare/reviews/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 89% recommend this product [## Hoxhunt](https://www.capterra.com/p/233248/Hoxhunt/) [4.9 (337)](https://www.capterra.com/p/233248/Hoxhunt/reviews/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 97% 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/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [## 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/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [## eM Client](https://www.capterra.com/p/160239/eM-Client/) [4.2 (187)](https://www.capterra.com/p/160239/eM-Client/reviews/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [## 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/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [## Zerospam](https://www.capterra.com/p/173157/ZEROSPAM/) [4.8 (135)](https://www.capterra.com/p/173157/ZEROSPAM/reviews/) Zerospam The AI-driven email security solution [Learn more about Zerospam](https://www.capterra.com/p/173157/ZEROSPAM/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 94% recommend this product [## Proton Mail](https://www.capterra.com/p/201276/ProtonMail/) [4.5 (122)](https://www.capterra.com/p/201276/ProtonMail/reviews/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting [## Selzy](https://www.capterra.com/p/255420/Selzy/) [4.8 (116)](https://www.capterra.com/p/255420/Selzy/reviews/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 91% 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/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 98% 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/) 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/) Email Security features reviewers most value AI Copilot Email Attachment Protection Encryption Fraud Detection Generative AI Policy Management Spam Blocker Spam Quarantine Whitelisting/Blacklisting 94% recommend this product Page 1 of 8 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/)