# KnowBe4 Cloud Email Security vs TrustLayer Mail: side-by-side comparison (2026) [KnowBe4 Cloud Email Security](https://cybersectools.com/tools/knowbe4-cloud-email-security) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [KnowBe4](https://cybersectools.com/companies/knowbe4). [TrustLayer Mail](https://cybersectools.com/tools/trustlayer-mail) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [TrustLayer](https://cybersectools.com/companies/trustlayer). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more. ## Side-by-side comparison | | KnowBe4 Cloud Email Security | TrustLayer Mail | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Hybrid | | Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise | | Company | KnowBe4 | TrustLayer | | Headquarters | – | – | ### Use cases and capabilities | | KnowBe4 Cloud Email Security | TrustLayer Mail | |---|---|---| | Microsoft 365 | Yes | Yes | | Ransomware Prevention | Yes | – | ### Core features **KnowBe4 Cloud Email Security** 10 features listed. Sign in on the page to see them. **TrustLayer Mail** 9 features listed. Sign in on the page to see them. ### Integrations **KnowBe4 Cloud Email Security** 5 integrations listed. Sign in on the page to see them. **TrustLayer Mail** 1 integration listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [KnowBe4 Cloud Email Security](https://cybersectools.com/tools/knowbe4-cloud-email-security) fits if you want a cloud product. - [TrustLayer Mail](https://cybersectools.com/tools/trustlayer-mail) fits if you need both cloud and on-premises options and you are a startup. ## KnowBe4 Cloud Email Security vs TrustLayer Mail FAQ Common questions when comparing KnowBe4 Cloud Email Security vs TrustLayer Mail for email security platforms. ### What is the difference between KnowBe4 Cloud Email Security and TrustLayer Mail? **KnowBe4 Cloud Email Security**: AI-driven email security platform for Microsoft 365 inbound/outbound threats. Built by KnowBe4. **TrustLayer Mail**: Email security platform with inline threat protection and compliant archiving. Built by TrustLayer. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes KnowBe4 Cloud Email Security and TrustLayer Mail? **KnowBe4 Cloud Email Security** is made by KnowBe4. **TrustLayer Mail** is made by TrustLayer. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is KnowBe4 Cloud Email Security a good alternative to TrustLayer Mail? Often, yes. KnowBe4 Cloud Email Security and TrustLayer Mail 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. ## Related comparisons - [KnowBe4 Cloud Email Security vs ConnectWise Email Security](https://cybersectools.com/compare/connectwise-email-security-vs-knowbe4-cloud-email-security) - [KnowBe4 Cloud Email Security vs Cellopoint Cloud Email Security Solution](https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-knowbe4-cloud-email-security) - [KnowBe4 Cloud Email Security vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-knowbe4-cloud-email-security) - [TrustLayer Mail vs ConnectWise Email Security](https://cybersectools.com/compare/connectwise-email-security-vs-trustlayer-mail) - [TrustLayer Mail vs Cellopoint Cloud Email Security Solution](https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-trustlayer-mail) - [TrustLayer Mail vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-trustlayer-mail) ## Alternatives to each - [See all KnowBe4 Cloud Email Security alternatives](https://cybersectools.com/alternatives/knowbe4-cloud-email-security) - [See all TrustLayer Mail alternatives](https://cybersectools.com/alternatives/trustlayer-mail) --- Source: https://cybersectools.com/compare/knowbe4-cloud-email-security-vs-trustlayer-mail For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/knowbe4-cloud-email-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on KnowBe4 Cloud Email Security and TrustLayer Mail: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md