Top Email Security Vendorsin 2026

Find the best email security vendors, ranked on phishing detection, BEC protection and ease of deployment. Compare Proofpoint, Abnormal Security, Mimecast and Microsoft.

Email Security Ranked

Vendors

Last Updated

October 6, 2026

Find the best email security vendors, ranked on phishing detection, BEC protection and ease of deployment. Compare Proofpoint, Abnormal Security, Mimecast and Microsoft.

Not sure which to pick? See the top 3 side by side: Cisco Secure Email, FortiMail, Check Point Harmony Email & Collaboration.

Compare the top 3

#1 Top Rank

Editorial #1 ChoiceEmail Security

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Cisco Secure Email

byCiscoVerified

San Jose, California, USA80,000+

Cisco Secure Email delivers dynamic file analysis for phishing prevention. Explore its Email Security capabilities, deployment choices and top competitors.

Phishing preventionBusiness email compromise protectionEmail encryptionSpam mitigationOutbound data loss prevention

Deployment

SaaS, Cloud, Hybrid

Integrations

Microsoft 365, Microsoft Exchange, Cisco SecureX +5

Target Users

Cross-industry, Financial Services, Healthcare, Government, Retail, Technology

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II, ISO 27001, HIPAA, PCI DSS, GDPR

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#2 Runner Up

Email Security

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FortiMail

byFortinetVerified

Sunnyvale, California, USA10,000+

FortiMail offers anti-spam, anti-phishing and malware protection. Use it for inbound email security and phishing defense. See Secure Email Gateway alternatives.

Inbound email securityPhishing defenseMalware filteringOutbound data protectionEmail compliance

Deployment

Cloud

Integrations

FortiSandbox, FortiAnalyzer, FortiSIEM +4

Target Users

Enterprise, SMB, Financial services, Healthcare, Government, Education, Manufacturing, Retail, Technology, Service providers

Enterprise Ready:SSO ReadyRBACREST APICompliance: Supports security controls used in common regulated environments; exact certifications depend on product, model, release and deployment

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#3 Ranked

Email Security

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Check Point Harmony Email & Collaboration

byCheck PointVerified

Tel Aviv, Israel5,000+

Evaluating Check Point Harmony Email & Collaboration? See how this Email Security tool handles DLP, where it fits best and which alternatives to compare.

Anti-phishing defenseExecutive impersonation preventionCollaboration file sanitizationInsider threat containment

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Teams +3

Target Users

Financial Services, Healthcare, Government, Cross-industry, Legal

Enterprise Ready:SSO ReadyRBACREST APICompliance: HIPAA; GDPR; SOC 2 Type II; ISO/IEC 27001; PCI-DSS

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MDR (Managed Detection & Response)

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Guardz

byGuardzVerified

Miami, Florida, USA201-500

Guardz is an all-in-one cybersecurity & MDR platform for MSPs. It helps with Managed Security through 24/7 MDR. Explore features and compare MDR alternatives.

MDREndpoint SecuritySecurity OperationsEmail SecurityManaged Security

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, ConnectWise +2

Target Users

MSPs, SMBs, Distributed Workforces, Healthcare, Professional Services

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR; HIPAA

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Email Security

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Egress Secure Email

byEgressVerified

London, United Kingdom500+

Egress Secure Email covers unified email security suite, AI phishing detection and contextual DLP prompts for Email Encryption. Compare top Email Security tools.

Email SecurityDLPSecure Email GatewayEmail EncryptionBEC Protection

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Microsoft Entra ID +1

Target Users

Global Enterprise, Banking, Legal, Healthcare, Government

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; NCSC CPA; HIPAA; GDPR

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Email Security

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Microsoft Defender for Office 365

byMicrosoftVerified

Redmond, Washington, USA200,000+

Microsoft Defender for Office 365 from Microsoft focuses on malware prevention. Key capabilities: Safe Links. Compare it with the leading Email Security alternatives.

Email securityAnti-phishingBEC protectionMalware preventionCollaboration security

Deployment

Cloud

Integrations

Microsoft 365, Microsoft Defender XDR, Microsoft Entra +1

Target Users

Cross-industry

Enterprise Ready:SSO ReadyRBACREST APICompliance: Microsoft 365 compliance portfolio

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Phishing Simulation

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Hoxhunt Phishing Reporting

byHoxhuntVerified

Helsinki, Finland201-500

Shortlisting Email Security tools? Hoxhunt Phishing Reporting by Hoxhunt brings header analysis, with cloud deployment. See strengths and alternatives.

Suspicious email submissionAutomated SOC alert triageUser reinforcementMalicious campaign detection

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Microsoft Defender +2

Target Users

Corporate IT, Financial Services, Healthcare, Education

Enterprise Ready:SSO ReadyRBACREST APICompliance: ISO 27001; SOC 2 Type II; GDPR

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Email Encryption

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Proofpoint Email DLP and Encryption

byProofpointVerified

Sunnyvale, California, USA4,000+

Free trial available. Proofpoint Email DLP and Encryption by Proofpoint offers message recall. Compare features, use cases and leading Email Security alternatives.

Outbound sensitive data leak preventionAutomated email encryptionCompliance email archivingSecure recipient communication

Deployment

SaaS, Cloud, Hybrid

Integrations

Microsoft 365, Google Workspace, Proofpoint DLP +2

Target Users

Healthcare, Banking, Insurance, Legal, Enterprise

Enterprise Ready:SSO ReadyRBACREST APICompliance: HIPAA; GDPR; PCI DSS; GLBA; SOC 2 Type II; ISO 27001

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Anti-Phishing

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SoSafe Phishing Simulation

bySoSafeVerified

Cologne, Germany201-500

SoSafe Phishing Simulation: detailed click telemetry and adaptive difficulty algorithms. Built for automated phishing training. Compare Email Security alternatives.

Automated phishing trainingSocial engineering defenseSuspicious email reportingEmployee resilience building

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Outlook add-in +2

Target Users

Cross-industry, Financial Services, Manufacturing, Healthcare, Retail, Technology, Education

Enterprise Ready:SSO ReadyRBACREST APICompliance: GDPR; ISO 27001; NIS2

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#10

Endpoint Security

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Symantec Enterprise Cloud

byBroadcomVerified

Palo Alto, California, USA10,001+

Symantec Enterprise Cloud from Broadcom focuses on vendor consolidation. Key capabilities: cloud SWG & CASB. Compare it with the leading Endpoint Security alternatives.

Vendor consolidationEnterprise zero-trust accessUnified cross-channel DLPSynchronized cloud threat defense

Deployment

SaaS, Cloud, Hybrid

Integrations

Microsoft Entra ID, Okta, Splunk +3

Target Users

Global Enterprise, Financial Services, Healthcare, Government, Telecommunications

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO/IEC 27001; HIPAA; GDPR; PCI-DSS

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#11

Email Encryption

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Zix Email Encryption

byZixVerified

Dallas, Texas, USA20,000+ (parent: OpenText)

Get the facts on Zix Email Encryption: mobile secure email. Built for confidential legal messaging. Compare it with other Email Encryption options before you decide.

Automated HIPAA compliant email encryptionFinancial data transmission protectionConfidential legal messagingSecure client communications

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Microsoft Exchange +3

Target Users

Healthcare, Financial Services, Legal, Insurance, Government, Education

Enterprise Ready:SSO ReadyRBACREST APICompliance: HIPAA; GLBA; GDPR; SOC 2 Type II; ISO 27001; PCI-DSS

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#12

Email Security

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Cloudflare Email Security

byCloudflareVerified

San Francisco, California, USA5,000+

Cloudflare Email Security: preemptive threat discovery and BEC language analysis. Built for business email compromise mitigation. Compare Email Security alternatives.

Business email compromise mitigationCredential phishing preventionExecutive impersonation defenseAutomated mailbox quarantine

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Microsoft Sentinel +2

Target Users

Financial Services, Healthcare, Government, Enterprise, Retail, Cross-industry, Education

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; HIPAA; GDPR; PCI-DSS

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#13

Email Security

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DMARCly

byDMARClyVerified

Delaware, USA1-10

Get the facts on DMARCly: all-in-one DMARC setup and SPF record flattener. Built for SPF flattening. Compare it with other Email Security options before you decide.

SPF flatteningDMARC enforcementBIMI verificationPhishing protection

Deployment

SaaS, Cloud

Integrations

Cloudflare, Route 53, Namecheap +2

Target Users

Cross-industry, SMB, Mid-market, Enterprise, SMBs, SaaS Startups, E-commerce

Enterprise Ready:SSO ReadyRBACREST APICompliance: GDPR; SOC 2 Type II compliant infrastructure

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#14

Email Security

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Fortra Clearswift Secure Email Gateway

byFortraVerified

Eden Prairie, Minnesota, USA3,000+

Fortra Clearswift Secure Email Gateway: Deep Content Inspection and adaptive DLP redaction. Built for outbound email DLP. Compare Secure Email Gateway alternatives.

Inbound phishing mitigationOutbound email DLPDocument sanitizationRegulatory compliance enforcement

Deployment

SaaS, Cloud, On-Premise

Integrations

Microsoft 365, Microsoft Exchange, Google Workspace +2

Target Users

Government, Financial Services, Healthcare, Defense, Enterprise IT, Government & Defense, Banking, Legal, Critical Infrastructure

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR; HIPAA; PCI-DSS; CMMC

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#15

Email Security

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KnowBe4 PhishER

byKnowBe4Verified

Clearwater, Florida, USA1,000+

Evaluating KnowBe4 PhishER? See how this Email Security tool handles IOC extraction and rule-based workflows, where it fits best and which alternatives to compare.

High-volume email triage automationMalicious message clawbackPhishAlert button processingThreat intelligence enrichment

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, CrowdStrike +3

Target Users

Enterprise SOCs, Financial Services, Healthcare, Government

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR; HIPAA

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#16

Email Encryption

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Virtru Email Encryption

byVirtruVerified

Washington, DC, USA201-500

Shortlisting Email Encryption tools? Virtru Email Encryption by Virtru brings expiration timers, with cloud deployment. See strengths and alternatives.

HIPAA compliant patient communicationsConfidential legal correspondenceExecutive email securityFinancial record transmission

Deployment

SaaS, Cloud

Integrations

Gmail, Microsoft Outlook, Google Workspace +2

Target Users

Healthcare, Legal, Financial Services, Education, Public Sector, Manufacturing

Enterprise Ready:SSO ReadyRBACREST APICompliance: HIPAA; FERPA; GDPR; CJIS; SOC 2 Type II; FIPS 140-2

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#17

Secure Email Gateway

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Barracuda Email Security Gateway

byBarracuda NetworksVerified

Campbell, California, USA1,001-5,000

Barracuda Email Security Gateway, from Barracuda Networks, provides spam filtering. Common uses: DLP. Check deployment options and top Email Security competitors.

Secure Email GatewayEmail SecuritySpam FilteringDLP

Deployment

On-Premise

Integrations

Microsoft Exchange, Lotus Notes, Sendmail

Target Users

Large Enterprise, Government, Education

Enterprise Ready:SSO ReadyRBACREST APICompliance: FIPS 140-2; Common Criteria; ISO 27001; SOC 2

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#18

Email Security

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Hornetsecurity Email Security

byHornetsecurityVerified

Hanover, Germany1,000+

Hornetsecurity Email Security: sandboxing ATP engine and automated email encryption. Built for business email compromise defense. Compare Email Security alternatives.

Business email compromise defensePhishing and ransomware interceptionAutomated email encryptionMicrosoft 365 cloud backup and archiving

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Microsoft Entra ID +2

Target Users

Enterprise IT, MSPs, Small & Medium Enterprises, Healthcare, Financial Services

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR; HIPAA; Cyber Essentials

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#19

Email Security

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IRONSCALES DMARC Management

byIRONSCALESVerified

Atlanta, Georgia, USA201-500

Evaluating IRONSCALES DMARC Management? See how this Email Security tool handles SPF record flattening, where it fits best and which alternatives to compare.

Corporate domain spoofing preventionSender authentication complianceEmail deliverability improvementBrand phishing protection

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Cloudflare +2

Target Users

Enterprise, Financial Services, E-commerce, Healthcare, MSPs

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; GDPR; HIPAA

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#20

Email Security

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Trustifi Email Security

byTrustifiVerified

Las Vegas, Nevada, USA11-50

Trustifi Email Security: inbound AI phishing detection and dynamic email warning banners. Built for inbound phishing prevention. Compare Email Security alternatives.

Inbound phishing preventionBusiness email compromise defense1-click outbound email encryptionSensitive data loss prevention

Deployment

SaaS, Cloud

Integrations

Microsoft 365, Google Workspace, Microsoft Entra ID +2

Target Users

Financial Services, Healthcare, Legal, Education, Enterprise IT, SMBs

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; HIPAA; GDPR; PCI-DSS

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Frequently Asked Questions

Quick answers about Top Email Security Vendors.

Which are the top Email Security vendors on Cyber Rank?

Top Email Security Vendors currently lists 20 products, in editorial order: #1 Cisco Secure Email, #2 FortiMail (Fortinet), #3 Check Point Harmony Email & Collaboration, #4 Guardz, #5 Egress Secure Email, #6 Microsoft Defender for Office 365, #7 Hoxhunt Phishing Reporting, #8 Proofpoint Email DLP and Encryption, #9 SoSafe Phishing Simulation, #10 Symantec Enterprise Cloud (Broadcom), #11 Zix Email Encryption, #12 Cloudflare Email Security, #13 DMARCly, #14 Fortra Clearswift Secure Email Gateway, #15 KnowBe4 PhishER, #16 Virtru Email Encryption, #17 Barracuda Email Security Gateway (Barracuda Networks), #18 Hornetsecurity Email Security, #19 IRONSCALES DMARC Management, #20 Trustifi Email Security.

Which product is ranked #1 in Top Email Security Vendors?

Cisco Secure Email by Cisco is ranked first by the Cyber Rank editorial team.

View Cisco Secure Email →

How is Top Email Security Vendors put together?

The Cyber Rank editorial team selects the products on this list and decides their order after reviewing each product's features, deployment options, integrations, industry fit and vendor background. It is not a market-share or customer-review ranking.

Which products appear here?

Products that our editors picked for Email Security and that have a published Cyber Rank profile.

Can a product appear in other rankings?

Yes. Editors can list a product in any ranking where it is a strong fit, so it may appear in several.