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Buyer's guide

Best Email Security software

Compare Email Security products. Open any profile for real pricing, compliance, and buyer-fit detail, or jump into the email security directory to filter by industry, company size, and certifications.

17 toolsUpdated 2026

1
Galaxkey is a Post-Quantum Ready Data Protection platform that secures business information today and protects it against the quantum threats of tomorrow.
Encryption Software
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2
Material Security secures cloud email and collaboration environments with controls built around account compromise, sensitive data exposure, and modern phishing risk.
Email Security
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3
Mimecast provides email security, archiving, and continuity solutions protecting organizations from phishing, ransomware, and business email compromise.
Email Security Platforms
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4
Trustifi: Cloud-based email security platform providing end-to-end encryption, DLP, and advanced threat protection for inbound and outbound email.
Email Security
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5
Perception Point: Advanced threat prevention platform providing email, browser, and cloud app security with rapid detection of phishing, malware, and zero-days.
Email Security
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6
PowerDMARC: Email authentication SaaS platform providing DMARC, SPF, DKIM, BIMI, and MTA-STS management with threat intelligence and hosted services.
Email Deliverability
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7
ProtonMail: End-to-end encrypted email service based in Switzerland offering zero-access encryption and anonymous sign-up for maximum privacy.
Email Security
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8
Dark Web ID: Kaseya-owned dark web monitoring platform (ID Agent) built for MSPs to detect compromised credentials and domain exposure.
Dark Web Monitoring
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9
Echoworx: Cloud-based email encryption platform delivering flexible recipient experiences and granular policy controls for global enterprises.
Email Security
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10
Heimdal provides a unified cybersecurity platform with advanced DNS security that uses machine learning and AI-powered predictive capabilities to block threats at the DNS layer.
Cybersecurity
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11
IRONSCALES provides AI-powered email security with phishing simulation, awareness training, and automated incident response for enterprises.
Email Security Platforms
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12
Clean Email: Email management tool that organizes, cleans, and automates inbox rules with bulk actions and smart grouping across all email providers.
Inbox Management
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13
MXToolbox: Email deliverability diagnostic suite offering blacklist monitoring, DMARC management, MX record lookup, and email health reporting.
Email Deliverability
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14
GreatHorn: Cloud-native email security for Microsoft 365 and Google Workspace using relationship analytics to stop spear phishing and BEC.
Email Security
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15
Agari: Fortra-owned email security platform using identity-based detection to protect against business email compromise, phishing, and brand impersonation.
Email Security
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16
Dmarcian: DMARC management platform helping organizations deploy and maintain email authentication protocols with visual reporting and expert guidance.
Email Security
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17
Valimail: Automated email authentication platform enabling zero-trust DMARC enforcement, BIMI implementation, and phishing prevention for enterprise senders.
Email Security
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18
Area 1: Email security platform from Cloudflare with preemptive phishing protection
Email Security
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19
Group-IB: Singapore-based cyber threat intelligence and fraud prevention platform serving enterprises worldwide.
Cybersecurity
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20
Guardsquare: Mobile app protection platform providing code hardening, RASP, and threat monitoring for mobile apps.
Email Security
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21
Pistachio: AI-powered personalized cybersecurity training
Email Security
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22
Mailprotector: Cloud email security and management platform for MSPs and enterprises.
Email Security
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23
Axigen: Business email and collaboration platform with on-premise and cloud deployment options.
Business Email Hosting
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24
Red Sift: Email security and brand protection platform offering DMARC, anti-impersonation, and attack surface monitoring.
Email Security
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25
AppRiver: Email security and M365 services acquired by Zix and OpenText
Email Security
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26
CanIPhish: Free and paid phishing simulation and awareness training
Phishing Simulation Platforms
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27
Sasa Software: Content disarm for files and air-gapped networks
Zero-Day Protection
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28
Practice Protect: Cybersecurity platform built for accountants with identity management and access controls.
Security – Identity & Access Management
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29
Click Armor: Gamified cybersecurity awareness training with challenges
Email Security
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30
Kickbox: Email verification service with bulk list cleaning, real-time API, and deliverability tools.
Email Verification
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31
Zivver: Secure email for regulated industries with end-to-end encryption
Email Security Platforms
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32
Sendmarc: DMARC, DKIM and SPF management platform
Email Security
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33
Cryptshare: German secure file transfer and email encryption platform.
Secure File Transfer
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34
Zix: Email security platform providing encryption, DLP, and threat protection for regulated industries.
Email Security
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35
Votiro: Content disarm and reconstruction for zero-day file threats
Zero-Day Protection
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36
N-able: MSP platform with RMM, remote access, and security tools for managed service providers.
GIS Software
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Frequently asked

What is the best email security software?

The guide above features email security tools with complete, vendor-maintained profiles. Open any profile for real pricing, compliance, and buyer-fit detail before you shortlist.

How does Cubbie choose these email security tools?

Listings come from the live Cubbie catalog. Cubbie does not accept payment for ranking position.

Ranked from Cubbie's live catalog, https://www.cubbie.com/best/email-security