# KnowBe4 Cloud Email Security vs Proofpoint Core Email Protection: 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). [Proofpoint Core Email Protection](https://cybersectools.com/tools/proofpoint-threat-protection) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Proofpoint](https://cybersectools.com/companies/proofpoint). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Proofpoint Core Email Protection](https://cybersectools.com/tools/proofpoint-threat-protection) Best for: Large companies wanting deep email filtering It earns a place because it goes past filtering into DLP, encryption, archiving and fraud defense from one vendor, which suits a large company that wants to run email security as one program. Archiving and supervision for SEC and FINRA rules matter if you work in financial services. Weigh which parts you really need, because the whole platform is a bigger commitment than a filter. From [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). 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 | Proofpoint Core Email Protection | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | KnowBe4 | Proofpoint | | Headquarters | – | – | ### Use cases and capabilities | | KnowBe4 Cloud Email Security | Proofpoint Core Email Protection | |---|---|---| | Microsoft 365 | Yes | – | | Ransomware Prevention | Yes | – | | DMARC | – | Yes | ### Core features **KnowBe4 Cloud Email Security** 10 features listed. Sign in on the page to see them. **Proofpoint Core Email Protection** 10 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. **Proofpoint Core Email Protection** 9 integrations listed. Sign in on the page to see them. ## KnowBe4 Cloud Email Security vs Proofpoint Core Email Protection FAQ Common questions when comparing KnowBe4 Cloud Email Security vs Proofpoint Core Email Protection for email security platforms. ### What is the difference between KnowBe4 Cloud Email Security and Proofpoint Core Email Protection? **KnowBe4 Cloud Email Security**: AI-driven email security platform for Microsoft 365 inbound/outbound threats. Built by KnowBe4. **Proofpoint Core Email Protection**: Email security platform with AI-based threat detection and DLP capabilities. Built by Proofpoint. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes KnowBe4 Cloud Email Security and Proofpoint Core Email Protection? **KnowBe4 Cloud Email Security** is made by KnowBe4. **Proofpoint Core Email Protection** is made by Proofpoint. 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 Proofpoint Core Email Protection? Often, yes. KnowBe4 Cloud Email Security and Proofpoint Core Email Protection are both Email Security Platforms products. 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 Vircom Email Security](https://cybersectools.com/compare/knowbe4-cloud-email-security-vs-vircom-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) - [Proofpoint Core Email Protection vs ConnectWise Email Security](https://cybersectools.com/compare/connectwise-email-security-vs-proofpoint-threat-protection) - [Proofpoint Core Email Protection vs Vircom Email Security](https://cybersectools.com/compare/proofpoint-threat-protection-vs-vircom-email-security) - [Proofpoint Core Email Protection vs Cellopoint Cloud Email Security Solution](https://cybersectools.com/compare/cellopoint-cloud-email-security-solution-vs-proofpoint-threat-protection) ## Alternatives to each - [See all KnowBe4 Cloud Email Security alternatives](https://cybersectools.com/alternatives/knowbe4-cloud-email-security) - [See all Proofpoint Core Email Protection alternatives](https://cybersectools.com/alternatives/proofpoint-threat-protection) --- Source: https://cybersectools.com/compare/knowbe4-cloud-email-security-vs-proofpoint-threat-protection 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 Proofpoint Core Email Protection: 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