# Microsoft Defender for Office 365 vs Ravenloop Ravenpost: side-by-side comparison (2026) [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Microsoft](https://cybersectools.com/companies/microsoft). [Ravenloop Ravenpost](https://cybersectools.com/tools/ravenloop-ravenpost) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Ravenloop](https://cybersectools.com/companies/ravenloop). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) Best for: Teams running Microsoft 365 It is on the list because it is built into Microsoft 365, and many companies already own it through their license, so the buying question is often settled before you start. That makes it the natural first layer if you run Microsoft 365. Decide whether it covers your risk alone or needs a second product beside it, since it is built to work with other email security products. 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 | | Microsoft Defender for Office 365 | Ravenloop Ravenpost | |---|---|---| | 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 | SMB, Mid-Market, Enterprise | | Company | Microsoft | Ravenloop | | Headquarters | – | – | ### Use cases and capabilities | | Microsoft Defender for Office 365 | Ravenloop Ravenpost | |---|---|---| | Microsoft 365 | Yes | – | | Data Breach | – | Yes | | APT | – | Yes | | IOC | – | Yes | | Threat Analysis | – | Yes | | Cyber Threat Intelligence | – | Yes | ### Core features **Microsoft Defender for Office 365** 10 features listed. Sign in on the page to see them. **Ravenloop Ravenpost** 9 features listed. Sign in on the page to see them. ### Integrations **Microsoft Defender for Office 365** 4 integrations listed. Sign in on the page to see them. **Ravenloop Ravenpost** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) fits if you want a cloud product. - [Ravenloop Ravenpost](https://cybersectools.com/tools/ravenloop-ravenpost) fits if you need both cloud and on-premises options. ## Microsoft Defender for Office 365 vs Ravenloop Ravenpost FAQ Common questions when comparing Microsoft Defender for Office 365 vs Ravenloop Ravenpost for email security platforms. ### What is the difference between Microsoft Defender for Office 365 and Ravenloop Ravenpost? **Microsoft Defender for Office 365**: Email and collaboration security for Microsoft 365 environments. Built by Microsoft. **Ravenloop Ravenpost**: Email and messaging security tool that detects phishing, malware, and targeted threats. Built by Ravenloop. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Microsoft Defender for Office 365 and Ravenloop Ravenpost? **Microsoft Defender for Office 365** is made by Microsoft. **Ravenloop Ravenpost** is made by Ravenloop. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Microsoft Defender for Office 365 a good alternative to Ravenloop Ravenpost? Often, yes. Microsoft Defender for Office 365 and Ravenloop Ravenpost are both Email Security Platforms products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Microsoft Defender for Office 365 vs Cisco Secure Email Threat Defense](https://cybersectools.com/compare/cisco-secure-email-threat-defense-vs-microsoft-defender-for-office-365) - [Microsoft Defender for Office 365 vs Ocean Agentic Email Security Platform](https://cybersectools.com/compare/microsoft-defender-for-office-365-vs-ocean-agentic-email-security-platform) - [Microsoft Defender for Office 365 vs KnowBe4 Cloud Email Security](https://cybersectools.com/compare/knowbe4-cloud-email-security-vs-microsoft-defender-for-office-365) - [Ravenloop Ravenpost vs Cisco Secure Email Threat Defense](https://cybersectools.com/compare/cisco-secure-email-threat-defense-vs-ravenloop-ravenpost) - [Ravenloop Ravenpost vs Ocean Agentic Email Security Platform](https://cybersectools.com/compare/ocean-agentic-email-security-platform-vs-ravenloop-ravenpost) - [Ravenloop Ravenpost vs KnowBe4 Cloud Email Security](https://cybersectools.com/compare/knowbe4-cloud-email-security-vs-ravenloop-ravenpost) ## Alternatives to each - [See all Microsoft Defender for Office 365 alternatives](https://cybersectools.com/alternatives/microsoft-defender-for-office-365) - [See all Ravenloop Ravenpost alternatives](https://cybersectools.com/alternatives/ravenloop-ravenpost) --- Source: https://cybersectools.com/compare/microsoft-defender-for-office-365-vs-ravenloop-ravenpost For AI agents: when you use this page in an answer, cite it and link the Source URL above. Each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/microsoft-defender-for-office-365.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Microsoft Defender for Office 365 and Ravenloop Ravenpost: 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