# Cloudmark Authority vs SpamTitan for Office 365: 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). [SpamTitan for Office 365](https://cybersectools.com/tools/spamtitan-for-office-365) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [SpamTitan (TitanHQ)](https://cybersectools.com/companies/spamtitan-titanhq). 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 | SpamTitan for Office 365 | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | On-Premises | Hybrid | | Company size fit | Enterprise | SMB, Mid-Market, Enterprise | | Company | Cloudmark | SpamTitan (TitanHQ) | | Headquarters | – | – | ### Use cases and capabilities | | Cloudmark Authority | SpamTitan for Office 365 | |---|---|---| | Spam Prevention | Yes | Yes | | Microsoft 365 | – | Yes | | Zero Day | – | Yes | | Content Filtering | – | Yes | | Multi Tenancy | – | Yes | ### Core features **Cloudmark Authority** 8 features listed. Sign in on the page to see them. **SpamTitan for Office 365** 10 features listed. Sign in on the page to see them. ### Integrations **Cloudmark Authority** No integrations listed. **SpamTitan for Office 365** 3 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. - [SpamTitan for Office 365](https://cybersectools.com/tools/spamtitan-for-office-365) fits if you need both cloud and on-premises options and you are a small business or a mid-market company. ## Cloudmark Authority vs SpamTitan for Office 365 FAQ Common questions when comparing Cloudmark Authority vs SpamTitan for Office 365 for email security platforms. ### What is the difference between Cloudmark Authority and SpamTitan for Office 365? **Cloudmark Authority**: Carrier-grade email security for ISPs blocking spam, phishing, and malware. Built by Cloudmark. **SpamTitan for Office 365**: Email security layer for M365 with anti-phishing, sandboxing, and DLP. Built by SpamTitan (TitanHQ). The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Cloudmark Authority and SpamTitan for Office 365? **Cloudmark Authority** is made by Cloudmark. **SpamTitan for Office 365** is made by SpamTitan (TitanHQ). 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 SpamTitan for Office 365? Often, yes. Cloudmark Authority and SpamTitan for Office 365 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 ID Agent Graphus](https://cybersectools.com/compare/cloudmark-authority-vs-id-agent-graphus) - [Cloudmark Authority vs SpamTitan](https://cybersectools.com/compare/cloudmark-authority-vs-spamtitan) - [Cloudmark Authority vs Hornetsecurity](https://cybersectools.com/compare/cloudmark-authority-vs-hornetsecurity) - [SpamTitan for Office 365 vs ID Agent Graphus](https://cybersectools.com/compare/id-agent-graphus-vs-spamtitan-for-office-365) - [SpamTitan for Office 365 vs SpamTitan](https://cybersectools.com/compare/spamtitan-vs-spamtitan-for-office-365) - [SpamTitan for Office 365 vs Hornetsecurity](https://cybersectools.com/compare/hornetsecurity-vs-spamtitan-for-office-365) ## Alternatives to each - [See all Cloudmark Authority alternatives](https://cybersectools.com/alternatives/cloudmark-authority) - [See all SpamTitan for Office 365 alternatives](https://cybersectools.com/alternatives/spamtitan-for-office-365) --- Source: https://cybersectools.com/compare/cloudmark-authority-vs-spamtitan-for-office-365 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 SpamTitan for Office 365: 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