Top 10 Best Anti-Phishing Software of 2026

Netcraft is built for organizations whose brands, domains, customers, and digital channels are frequent targets for fraud. Its platform detects phishing and impersonation across websites, domains, social media, mobile apps, messaging, and phone-based attacks, then gathers evidence, blocks access where possible, and manages removal workflows. Threat discovery draws on large-scale proprietary data, phishing-kit analysis, infrastructure clustering, pattern recognition, and continuous monitoring.

A major differentiator is Preemptive Domain Disruption, which uses verified attack indicators and infrastructure attribution to identify malicious domains before attackers deploy live phishing content. This is a strong fit for large banks, retailers, technology companies, public-sector organizations, and other heavily impersonated brands. The tradeoff is that Netcraft is primarily an external threat detection and takedown platform rather than a standalone employee inbox security gateway, so organizations may still need complementary email security and awareness tools.

Check Point Harmony Email & Collaboration connects to Microsoft 365 and Google Workspace through API integrations. Administrators can apply policies, quarantine suspicious messages, and investigate detections from a central console. The product covers email and connected collaboration services, which reduces gaps between mailbox and file-sharing protection.

API authorizations and policy settings require coordination with Microsoft 365 or Google Workspace administrators. It suits organizations that need post-delivery remediation and collaboration protection without routing all mail through a traditional gateway.

Proofpoint Email Protection combines secure email gateway controls with URL Defense and Attachment Defense capabilities. URL rewriting checks clicked links against current threat intelligence, while attachment analysis identifies malicious files that evade static detection. The service supports Microsoft 365 and Google Workspace environments and provides quarantine, message trace, and policy administration controls.

Policy configuration can span several Proofpoint modules and administrative views, which raises deployment and operational complexity. A security operations team with established email incident workflows can use message telemetry and API integrations to investigate reported phishing attempts and coordinate remediation.

Among enterprise anti-phishing products, Mimecast Email Security combines secure email gateway controls with click-time URL inspection and attachment sandboxing. Targeted Threat Protection uses URL Protect to rewrite and inspect links, while Attachment Protect analyzes suspicious files before delivery. Impersonation protection targets display-name spoofing, domain similarity, and executive fraud patterns, and APIs support SIEM integration and response automation.

Microsoft Defender for Office 365 blocks phishing emails, malicious links, and weaponized attachments within Microsoft 365 mailboxes. Its distinct advantage is native integration with Exchange Online, Teams, SharePoint, and OneDrive security controls.

Safe Links checks URLs at click time, while Safe Attachments detonates suspicious files in a sandbox. Threat Explorer, attack simulation training, and automated investigation tools give security teams remediation and audit visibility.

For Microsoft 365 and Google Workspace teams facing impersonation and account-takeover attempts, Barracuda Email Protection combines gateway filtering with post-delivery remediation. Email Gateway Defense scans attachments in a sandbox, rewrites URLs for click-time analysis, and blocks spam, malware, and phishing. Impersonation Protection analyzes communication patterns, while Incident Response searches mailboxes and removes delivered threats.

Cloudflare Area 1 Email Security distinguishes itself with pre-delivery phishing detection that inspects message, sender, link, and web signals before mailbox delivery. It protects Google Workspace and Microsoft 365 environments against business email compromise, credential phishing, malicious links, and malware-bearing messages.

Administrators can investigate suspicious email, search message activity, quarantine threats, and remediate delivered messages. Cloudflare integration also supports security workflows through dashboard controls, alerts, and API access.

For Microsoft 365 email protection, Hornetsecurity 365 Total Protection combines anti-phishing controls with backup, archiving, encryption, and security awareness training. Advanced Threat Protection scans attachments in a sandbox and evaluates malicious URLs to block targeted attacks. The central Control Panel supports Microsoft 365 integration, policy administration, user provisioning, and reporting across the included services.

Mailbox APIs let Material Security inspect Google Workspace and Microsoft 365 email without MX-record changes. Material Security is distinct for combining phishing detection with post-delivery message remediation and mailbox account takeover monitoring. Employee-reported messages can be analyzed and remediated across affected mailboxes, while data security controls identify sensitive email content.

Organizations already using Gmail can use Google Workspace Gmail Security to apply phishing controls without rerouting mail through a separate gateway. Google Workspace Gmail Security combines machine-learning spam and phishing detection, Safe Browsing URL checks, attachment malware scanning, and sender-authentication defenses. Gmail audit logs, routing rules, quarantine controls, and Google APIs support investigation and account administration, but detection tuning and cross-platform coverage are narrower than dedicated email security gateways.