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Email Security Software with AI/Machine Learning (2026)

Last updated: March 2026

Key features of Email Security Software

Based on GetApp's analysis of verified user reviews collected between July 2021 and August 2024.

  • Email Attachment Protection: Users value encryption, customizable blocking, and sandbox features for secure and straightforward handling of sensitive attachments. 95% of reviewers rated this feature as important or highly important.
  • Threat Response: Reviewers appreciate the quick, automated threat detection and response, which helps reduce IT resources and increases security. 95% of reviewers rated this feature as important or highly important.
  • Threat Protection: Users highlight strong phishing and malware detection, which effectively prevents threats from reaching inboxes and ensures data security. 94% of reviewers rated this feature as important or highly important.
  • Spam Blocker: Reviewers note effective spam filtering, customizable rules, and reduced clutter, making inbox management easier and more efficient. 94% of reviewers rated this feature as important or highly important.
  • Encryption: Users emphasize the importance of end-to-end encryption for securing sensitive communications, with ease of use being a crucial factor. 92% of reviewers rated this feature as important or highly important.
  • Reporting/Analytics: Reviewers find value in detailed reports and analytics that provide insights into email threats and help inform security decisions. 81% of reviewers rated this feature as important or highly important.
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40 software options

Guardz logo

Guardz

Cybersecurity solution

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Guardz is a managed cybersecurity solution built for MSPs to holistically protect and provide insurance coverage to SMEs with a holistic and multilayered approach.

The Guardz platform continuously monitors businesses' digital landscapes to safeguard their assets.

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Libraesva Email Security logo

Libraesva Email Security

Category Leaders

Exceptional Email Security

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Libraesva Email Security stops known and emerging email threats from reaching their target, so you only receive legitimate messages. It provides exceptional email security by integrating cloud email and a secure email gateway with Libraesva’s unique Adaptive Trust Engine.

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Fortra's Cloud Email Protection logo

Fortra's Cloud Email Protection

Defend against advanced phishing attacks.

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With Agari Phishing Defense, users can prevent breach activity at the cloud gateway and proactively protect users from impersonation attacks.

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Heimdal Email Security logo

Heimdal Email Security

Email Protection in a Redefined Spam Filter

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Heimdal Email Security is an email protection solution that combines advanced spam filtering with robust malware prevention through a multitude of modern technologies.

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ESET Endpoint Security logo

Network security, network monitoring & endpoint protection

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ESET Email Security protects email communications for organizations with 250+ employees. Available as cloud-based and on-premises, it ensures internet security and malware protection. Features include mail protection, cloud sandbox technology, remote device management and firewall configuration.

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Hoxhunt logo

Make security training engaging, personalized, and effective

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Hoxhunt is a security awareness training software designed to help businesses educate and train employees to identify and report phishing attacks or malicious emails. Administrators can create relevant content to automatically send personalized malicious emails to employees.

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SpamTitan logo
Category Leaders

Anti-spam filter for business email. Vital email security.

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SpamTitan blocks spam, viruses, malware, ransomware, phishing attempts and other email threats. SpamTitan provides advanced yet easy to use email security for your business. Office 365 friendly

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DNSFilter logo

Cloud-based cybersecurity and network monitoring platform

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DNSFilter is a cybersecurity management software that enables enterprises, K-12 schools, and universities to detect online security threats and malware using artificial intelligence (AI) technology, machine learning (ML) algorithms, and content filtering capabilities.

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Topsec Cloud Solutions logo

Your Managed Email Security Specialists

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Topsec Email Security is a complete email filtering solution that helps organizations to check all their incoming and outgoing email content for virus and spam.

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Flashstart logo

DNS filtering software provider

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FlashStart is at the forefront of cyber security innovation, leveraging AI-powered DNS intelligence to stay one step ahead of evolving threats.

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ALTOSPAM logo

Effectively protect all your company's emails

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ALTOSPAM is an email protection solution for all businesses, associations and local authorities. Choose advanced email security compatible with all mail servers, including Office 365. Try ALTOSPAM for free.

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Keepnet Labs logo

Extended Human Risk Management Platform, Empowered by AI

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Harden your Office 365, Google Workspace, and Secure Email Gateways (SEGs) for full protection. Keepnet’s Email Threat Simulator (ETS) continuously tests your secure email gateway solutions, such as Office 365 and Google Workspace, by sending real-world attacks to a dedicated test inbox.

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Avanan logo

Email Security — Reinvented

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Cloud Security, Cloud Email Security, Office 365 Security, Phishing, BEC, Anti-phishing, Malware, Email Account Breach, Business Email Compromise

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Paubox Email Suite logo

HIPAA-compliant email encryption software

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Paubox Email Suite is a HIPAA-compliant email encryption software designed to help businesses manage and secure emails using encryption and data loss prevention methods. It includes ExecProtect, which allows businesses to prevent data breaches, phishing, and display name spoofing attacks by automatically detecting and blocking impersonation scams and informing administrators via emails.

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Sealit logo

Full Security - Just 1 Click.

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Sealit protects your data, no matter how it's shared. End-to-end email and file encryption for small businesses or individuals.

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Guardio logo

Chrome extension for blocking malware and phishing attacks

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Guardio is a Google Chrome extension designed to help businesses provide protection against malware, phishing attacks, and identity theft and remove pop-up messages from the browser. It lets employees prevent unauthorized users from accessing web browsers and remove existing malware from devices via a unified platform.

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Red Sift OnDMARC logo

Automated DMARC software to stop phishing & spoofing attacks

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Red Sift OnDMARC shuts down the exact impersonation of email-sending domains used in cyber attacks, phishing, and scam emails. It also increases the deliverability of authorized emails and protects brand reputations.

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Trustifi logo

Protect Your Business Emails with AI-Powered Security

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Email security solution that helps manage threat detection, regulatory compliance, data encryption, whitelisting/blacklisting, and more.

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INLYSE Malware.AI logo

VISUAL AI BASED MALWARE DETECTION

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INLYSE Malware.AI is a revolutionary visual AI-based malware detection solution that utilizes cutting-edge technology to convert files into graphical representations and analyze them comprehensively for any signs of malware.

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Darktrace logo

AI-enabled network and cybersecurity solution

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Darktrace, founded in 2013 in Cambridge, UK, is a leader in AI cybersecurity, protecting 10,000+ global customers from evolving threats

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Graphus logo
Category Leaders

Cloud-based email security software

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Graphus is a cloud-based anti-phishing software, which helps protect organizations against email attacks, credential theft, malware, ransomware, identity spoofing, brand impersonation, business email compromise (BEC), account takeover (ATO) and other threats.

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InboxGuard logo

Email phishing protection and fraud detection solution

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InboxGuard (formerly Retruster) is a cloud-based phishing protection solution designed to help small to large organizations identify fake and malicious codes in incoming emails. Key features include data security, ransomware protection, identity theft prevention, background screening, and threat tracking.

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Kiteworks logo

Content Governance, Compliance, and Protection

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Protect privacy and ensure compliance of all sensitive content sent via email, file share, automated file transfer, APIs, and web forms - with one platform.

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ESET PROTECT Complete logo

Cloud-based patch management for total security

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ESET PROTECT Complete offers advanced patch management for businesses with 250+ employees, ensuring systems are secure and up-to-date with automated updates and comprehensive vulnerability assessments.

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Zivver logo

Email Security Made Effortless

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Zivver is email security software which helps enterprises transfer business documents and ensure secure e-mail communication. It allows users to retract emails, view risks, causes, and impact of data breaches, configure workflows, and generate custom reports.

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