Buyer's guide

Best Email Security software

Platforms that protect organizations from email-based threats including phishing, business email compromise, and malware. 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.

14 profiled toolsUpdated 2026

1
Material Security
Email Security
Material Security secures cloud email and collaboration environments with controls built around account compromise, sensitive data exposure, and modern phishing risk.
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2
Galaxkey
Encryption Software
Data protection platform delivering email encryption, e-signatures, and secure workspace built around open standards and sovereign hosting.
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3
Trustifi
Software
Cloud-based email security platform providing end-to-end encryption, DLP, and advanced threat protection for inbound and outbound email.
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4
Perception Point
Software
Advanced threat prevention platform providing email, browser, and cloud app security with rapid detection of phishing, malware, and zero-days.
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5
ProtonMail
Email Security
End-to-end encrypted email service based in Switzerland offering zero-access encryption and anonymous sign-up for maximum privacy.
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6
Echoworx
Email Security
Cloud-based email encryption platform delivering flexible recipient experiences and granular policy controls for global enterprises.
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7
Valimail
Email Security
Automated email authentication platform enabling zero-trust DMARC enforcement, BIMI implementation, and phishing prevention for enterprise senders.
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8
GreatHorn
Software
Cloud-native email security for Microsoft 365 and Google Workspace using relationship analytics to stop spear phishing and BEC.
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9
Agari
Software
Fortra-owned email security platform using identity-based detection to protect against business email compromise, phishing, and brand impersonation.
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10
Dmarcian
Email Security
DMARC management platform helping organizations deploy and maintain email authentication protocols with visual reporting and expert guidance.
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11
Vipre Email Security
Email Security
SMB-focused email security suite offering inbound filtering, encryption, archiving, and attachment sandboxing in one cloud console.
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12
Todyl
Security
Cloud-first security platform combining endpoint protection, SIEM, and network security in a single agent designed for mid-market organizations.
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13
Avanan
Email Security
Check Point-acquired cloud email security solution deploying inline before the inbox to block phishing and malware across Microsoft 365 and Google Workspace.
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14
MXToolbox
Email Deliverability
Email deliverability diagnostic suite offering blacklist monitoring, DMARC management, MX record lookup, and email health reporting.
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15
Area 1
Software
Email security platform from Cloudflare with preemptive phishing protection
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16
Guardsquare
Software
Mobile app protection platform providing code hardening, RASP, and threat monitoring for mobile apps.
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17
Pistachio
Software
AI-powered personalized cybersecurity training
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18
Mailprotector
Email Security
Cloud email security and management platform for MSPs and enterprises.
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19
Axigen
Business Email Hosting
Business email and collaboration platform with on-premise and cloud deployment options.
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20
Red Sift
Email Security
Email security and brand protection platform offering DMARC, anti-impersonation, and attack surface monitoring.
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21
AppRiver
Email Security
Email security and M365 services acquired by Zix and OpenText
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22
Sasa Software
Zero-Day Protection
Content disarm for files and air-gapped networks
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23
Click Armor
Software
Gamified cybersecurity awareness training with challenges
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24
Zivver
Email Security Platforms
Secure email for regulated industries with end-to-end encryption
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25
Sendmarc
Email Security
DMARC, DKIM and SPF management platform
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26
Cryptshare
Software
German secure file transfer and email encryption platform.
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27
Zix
Email Security
Email security platform providing encryption, DLP, and threat protection for regulated industries.
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28
Votiro
Zero-Day Protection
Content disarm and reconstruction for zero-day file threats
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29
Nimbus Tide
Software
Bespoke security awareness and anti-phishing content
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30
Abusix
Threat Intelligence Platforms
Abuse desk automation and threat intelligence for ISPs
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31
Defendza
Software
Security awareness training and phishing simulation for SMB
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32
Vade
Software
Predictive email security for Microsoft 365 and MSPs
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33
G DATA
Endpoint Protection
German antivirus and endpoint security vendor based in Bochum.
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34
Tutanota
Email Security
End-to-end encrypted email service offering private and secure email with German data protection.
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35
Mail-tester
Email Security
Spam checker tool analyzing email content, SPF, DKIM, and sender reputation.
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36
Gatefy
Email Security Platforms
AI-driven email security and anti-phishing platform
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Best email security by company size

Best email security for Solo / freelancer Best email security for Startup (1-50)Best email security for Small business (51-200)Best email security for Mid-market (201-1,000)Best email security for Enterprise (1,000+)

Buyers here also look at

Cloud Security Encryption Software Network Security Email Management AI Security Platforms

Keep exploring

Email Security directory & filters All software categories Software deals

Frequently asked

What is the best email security software?

Cubbie ranks 14 profiled email security tools by profile completeness, verified-vendor status, and active deals. The list above leads with the products that carry the most complete, vendor-maintained profiles.

How does Cubbie choose these email security tools?

Listings are drawn from the live catalog and ordered so products with substantive, vendor-maintained profiles surface first. Cubbie does not accept payment for ranking position.

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