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Evidence sheet Focus
Email Security
Email Security Platforms
Product
KnowBe4-acquired intelligent email security platform preventing inbound phishing attacks and outbound data breaches with adaptive machine learning.
Mimecast provides email security, archiving, and continuity solutions protecting organizations from phishing, ransomware, and business email compromise.
Headquarters
London, United Kingdom
London, United Kingdom
Company size
201-500 employees
1,001-5,000 employees
Source updated
Oct 29, 2026
Nov 2, 2026
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Best for
Company size
Security and switching
Security reviews
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Case studies and sources
Case studies
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Open the full comparison Plan limits, integrations, security reviews and case studies for every product you compare.
Email Security Product Category Price Offer
ProtonMail End-to-end encrypted email service based in Switzerland offering zero-access encryption and ano… Email Security $3.99+ / month $3.99+ / month Guardsquare Mobile app protection platform providing code hardening, RASP, and threat monitoring for mobile… Email Security Egress KnowBe4-acquired intelligent email security platform preventing inbound phishing attacks and ou… Email Security In comparison Material Security Material Security secures cloud email and collaboration environments with controls built around… Email Security $4+ / seat / month $4+ / seat / month Tutanota End-to-end encrypted email service offering private and secure email with German data protectio… Email Security $3.36+ / month $3.36+ / month Mailfence Belgian secure email with OpenPGP encryption, calendar, contacts, and documents. Email Security Zix Email security platform providing encryption, DLP, and threat protection for regulated industri… Email Security Vipre Email Security SMB-focused email security suite offering inbound filtering, encryption, archiving, and attachm… Email Security $1.25+ / user / month $1.25+ / user / month Vade Predictive email security for Microsoft 365 and MSPs Email Security Mail-tester Spam checker tool analyzing email content, SPF, DKIM, and sender reputation. Email Security $8+ / month $8+ / month Startmail Dutch private email with PGP encryption, aliases, and disposable addresses. Email Security AppRiver Email security and M365 services acquired by Zix and OpenText Email Security Egress alternatives Mimecast alternatives 
