Email Security software establishes a defensive perimeter to protect organizational email accounts against sophisticated threats, including phishing attempts, malware distribution, and accidental or malicious data leaks. Use our rankings below to compare Email Security Software options and features, and find the best one for you and your business.
Security features specifically designed to block or scan dangerous email attachments.
Transform information into secure code to protect against unauthorized access.
Detect and mitigate potentially fraudulent or unauthorized actions through real-time monitoring.
Administer and maintain organizational guidelines for various operational scenarios.
Isolate suspicious emails in a secure area for review and timed storage.
Advanced filtering systems designed to block spam and malware threats.
Managing access by maintaining lists of approved or blocked entities, such as email addresses.

ESET Endpoint Security is a comprehensive endpoint protection tool designed to defend against a wide spectrum of digital threats. It goes beyond basic antivirus to actively combat sophisticated malware, ransomware, rootkits, worms, and spyware. The software employs multiple layers of detection and proactive technologies to preve... Read More

SpamTitan is a powerful, cloud-based email security gateway specifically engineered to protect business email systems from spam, phishing attacks, malware, ransomware, and other advanced email-borne threats. It employs a multi-layered defense strategy including signature-based detection, greylisting, Bayesian analysis, and heuri... Read More

AVG Internet Security Business Edition is a full-featured endpoint protection suite designed for business environments. It provides multi-layered defense against malware, ransomware, and network attacks, with integrated email security to filter out spam and phishing attempts. A key component is the centralized AVG Cloud Manageme... Read More

Symantec Email Security.cloud (now under Broadcom) is a cloud-based email protection service that leverages Symantec's long-standing threat intelligence to defend organizational inboxes. It employs a multi-layered filtering approach to block spam, viruses, and advanced threats. Its focus extends to sophisticated attacks like phi... Read More

The Barracuda Email Security Gateway is a versatile, cloud-based service that provides comprehensive inbound and outbound email filtering. It defends against a wide range of threats including spam, viruses, malware, phishing, and ransomware using multiple scanning engines and reputation analysis. A notable feature is its email s... Read More

Microsoft Defender for Office 365 is a native, cloud-based security service integrated directly into the Microsoft 365 suite. It provides unified, advanced threat protection across Exchange Online, SharePoint, OneDrive, and Teams. It specializes in defending against sophisticated attacks like Business Email Compromise (BEC) and ... Read More

Topsec Email Security is a cloud-based gateway security service that provides real-time protection against a broad spectrum of email-borne threats. It operates at the internet level, scanning all incoming emails for spam, viruses, malware, phishing attempts, and other malicious content before they reach the corporate network. Th... Read More

ProtonMail is a secure email service built from the ground up with a core philosophy of privacy and data sovereignty. Based in Switzerland, it benefits from some of the world's strongest privacy laws. Its defining feature is easy-to-use end-to-end encryption, ensuring that only the sender and intended recipient can read email co... Read More

Avanan is a cloud-native security platform that takes a unique API-based approach to securing cloud email and collaboration suites like Microsoft 365, Google Workspace, and Slack. Instead of acting as a gateway, it integrates invisibly via API, scanning data post-delivery within the cloud environment itself. This allows it to ap... Read More

Perch Security is a cloud-based threat detection and response platform backed by a 24/7 Security Operations Center (SOC). It aggregates and correlates security data from various sources like endpoints, networks, and cloud environments to provide actionable alerts and context on potential threats. The service offers continuous mo... Read More