# Cloudmark Authority vs ESET Cloud Office Security: side-by-side comparison (2026) [Cloudmark Authority](https://cybersectools.com/tools/cloudmark-authority) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Cloudmark](https://cybersectools.com/companies/cloudmark). [ESET Cloud Office Security](https://cybersectools.com/tools/eset-cloud-office-security) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [ESET](https://cybersectools.com/companies/eset). 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 | | Cloudmark Authority | ESET Cloud Office Security | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | On-Premises | Cloud | | Company size fit | Enterprise | SMB, Mid-Market, Enterprise | | Company | Cloudmark | ESET | | Headquarters | – | – | ### Use cases and capabilities | | Cloudmark Authority | ESET Cloud Office Security | |---|---|---| | Spam Prevention | Yes | Yes | | Cloud Native | – | Yes | | Microsoft 365 | – | Yes | | Ransomware Prevention | – | Yes | | Sandbox | – | Yes | ### Core features **Cloudmark Authority** 8 features listed. Sign in on the page to see them. **ESET Cloud Office Security** 10 features listed. Sign in on the page to see them. ### Integrations **Cloudmark Authority** No integrations listed. **ESET Cloud Office Security** 10 integrations 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. - [Cloudmark Authority](https://cybersectools.com/tools/cloudmark-authority) fits if you need to run it on your own servers. - [ESET Cloud Office Security](https://cybersectools.com/tools/eset-cloud-office-security) fits if you want a cloud product and you are a small business or a mid-market company. ## Cloudmark Authority vs ESET Cloud Office Security FAQ Common questions when comparing Cloudmark Authority vs ESET Cloud Office Security for email security platforms. ### What is the difference between Cloudmark Authority and ESET Cloud Office Security? **Cloudmark Authority**: Carrier-grade email security for ISPs blocking spam, phishing, and malware. Built by Cloudmark. **ESET Cloud Office Security**: Cloud email security for Microsoft 365 and Google Workspace applications. Built by ESET. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Cloudmark Authority and ESET Cloud Office Security? **Cloudmark Authority** is made by Cloudmark. **ESET Cloud Office Security** is made by ESET. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Cloudmark Authority a good alternative to ESET Cloud Office Security? Often, yes. Cloudmark Authority and ESET Cloud Office Security are both Email Security Platforms products, and both cover Spam Prevention. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Cloudmark Authority vs Iberlayer Email Guardian](https://cybersectools.com/compare/cloudmark-authority-vs-iberlayer-email-guardian) - [Cloudmark Authority vs Cybersentriq MX Email Threat Protection](https://cybersectools.com/compare/cloudmark-authority-vs-cybersentriq-mx-email-threat-protection) - [Cloudmark Authority vs Cloudflare Cloud Email Security](https://cybersectools.com/compare/cloudflare-cloud-email-security-vs-cloudmark-authority) - [ESET Cloud Office Security vs Iberlayer Email Guardian](https://cybersectools.com/compare/eset-cloud-office-security-vs-iberlayer-email-guardian) - [ESET Cloud Office Security vs Cybersentriq MX Email Threat Protection](https://cybersectools.com/compare/cybersentriq-mx-email-threat-protection-vs-eset-cloud-office-security) - [ESET Cloud Office Security vs Cloudflare Cloud Email Security](https://cybersectools.com/compare/cloudflare-cloud-email-security-vs-eset-cloud-office-security) ## Alternatives to each - [See all Cloudmark Authority alternatives](https://cybersectools.com/alternatives/cloudmark-authority) - [See all ESET Cloud Office Security alternatives](https://cybersectools.com/alternatives/eset-cloud-office-security) --- Source: https://cybersectools.com/compare/cloudmark-authority-vs-eset-cloud-office-security For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/cloudmark-authority.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Cloudmark Authority and ESET Cloud Office Security: 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