INKY Graymail Protection vs KnowBe4 Cloud Email Security: side-by-side comparison (2026)

INKY Graymail Protection: Filters bulk and graymail to reduce email distractions and boost productivity. Built by INKY Technology Corporation.

KnowBe4 Cloud Email Security: AI-driven email security platform for Microsoft 365 inbound/outbound threats. Built by KnowBe4.

The table above shows where their features, integrations, deployment and company size fit differ.

INKY Graymail Protection is made by INKY Technology Corporation. KnowBe4 Cloud Email Security 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. INKY Graymail Protection and KnowBe4 Cloud Email Security are both Email Security Platforms products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ.