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VisitGreatHorn Mailbox Intelligence is a commercial Anti-Phishing solution by GreatHorn. KnowBe4 DefendTM Advanced Inbound Email Threat Defense is a commercial Anti-Phishing solution by KnowBe4. Features, integrations, deployment and the company behind each one, side by side.
Email security tool empowering users to identify & report phishing threats
AI-powered email security detecting phishing attacks missed by traditional tools
See more solutions in this category, or build a security stack from your picks.
Based on what each listing shows: deployment, company size, price and open source.
GreatHorn Mailbox Intelligence fits if you are a startup.
Common questions when comparing GreatHorn Mailbox Intelligence vs KnowBe4 DefendTM Advanced Inbound Email Threat Defense for Anti-Phishing.
GreatHorn Mailbox Intelligence: Email security tool empowering users to identify & report phishing threats, built by GreatHorn.
KnowBe4 DefendTM Advanced Inbound Email Threat Defense: AI-powered email security detecting phishing attacks missed by traditional tools, built by KnowBe4.
The table above shows where their features, integrations, deployment and company size fit differ.
GreatHorn Mailbox Intelligence is made by GreatHorn. KnowBe4 DefendTM Advanced Inbound Email Threat Defense is made by KnowBe4. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.
Often, yes. GreatHorn Mailbox Intelligence and KnowBe4 DefendTM Advanced Inbound Email Threat Defense are both Anti-Phishing products. Use the table above to see where features, deployment and company size fit differ.
No Anti-Phishing shortlist yet. This is the closest one.
Updated 2026-11-02
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