# Rspamd vs Sendmarc DMARC Managed Services: side-by-side comparison (2026) [Rspamd](https://cybersectools.com/tools/rspamd) is a free [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution. [Sendmarc DMARC Managed Services](https://cybersectools.com/tools/sendmarc-dmarc-managed-services) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Sendmarc](https://cybersectools.com/companies/sendmarc). 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 | | Rspamd | Sendmarc DMARC Managed Services | |---|---|---| | Pricing model | Free | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | On-Premises | Cloud | | Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | GitHub stars | 2,396 | – | | Last commit | Mar 2026 | – | | Company | – | Sendmarc | | Headquarters | – | – | ### Use cases and capabilities | | Rspamd | Sendmarc DMARC Managed Services | |---|---|---| | UDP | Yes | – | | Spam Prevention | Yes | – | | DMARC | – | Yes | | SPF | – | Yes | | DKIM | – | Yes | | Multi Tenancy | – | Yes | | Spoofing | – | Yes | ### Core features **Rspamd** No features listed. **Sendmarc DMARC Managed Services** 10 features listed. Sign in on the page to see them. ### Integrations **Rspamd** No integrations listed. **Sendmarc DMARC Managed Services** 2 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. - [Rspamd](https://cybersectools.com/tools/rspamd) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product. - [Sendmarc DMARC Managed Services](https://cybersectools.com/tools/sendmarc-dmarc-managed-services) fits if you want a cloud product. ## Rspamd vs Sendmarc DMARC Managed Services FAQ Common questions when comparing Rspamd vs Sendmarc DMARC Managed Services for email security platforms. ### What is the difference between Rspamd and Sendmarc DMARC Managed Services? **Rspamd**: Rspamd is an advanced spam filtering system and email processing framework that evaluates messages using multiple analysis methods and integrates with MTAs for high-volume email processing. **Sendmarc DMARC Managed Services**: MSP-focused multi-tenant DMARC management platform for email auth at scale, built by Sendmarc. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Rspamd and Sendmarc DMARC Managed Services? **Rspamd** is open-source with 2,396 GitHub stars. **Sendmarc DMARC Managed Services** is made by Sendmarc. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Rspamd a good alternative to Sendmarc DMARC Managed Services? Often, yes. Rspamd and Sendmarc DMARC Managed Services are both Email Security Platforms products. Key differences: Rspamd is Free while Sendmarc DMARC Managed Services is Commercial, Rspamd is open-source. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Rspamd vs SmarterTools SmarterMail](https://cybersectools.com/compare/rspamd-vs-smartertools-smartermail) - [Rspamd vs Ironscales DMARC Management](https://cybersectools.com/compare/ironscales-dmarc-management-vs-rspamd) - [Rspamd vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-rspamd) - [Sendmarc DMARC Managed Services vs SmarterTools SmarterMail](https://cybersectools.com/compare/sendmarc-dmarc-managed-services-vs-smartertools-smartermail) - [Sendmarc DMARC Managed Services vs Ironscales DMARC Management](https://cybersectools.com/compare/ironscales-dmarc-management-vs-sendmarc-dmarc-managed-services) - [Sendmarc DMARC Managed Services vs MX Layer Outbound Email Filtering](https://cybersectools.com/compare/mx-layer-outbound-email-filtering-vs-sendmarc-dmarc-managed-services) ## Alternatives to each - [See all Rspamd alternatives](https://cybersectools.com/alternatives/rspamd) - [See all Sendmarc DMARC Managed Services alternatives](https://cybersectools.com/alternatives/sendmarc-dmarc-managed-services) --- Source: https://cybersectools.com/compare/rspamd-vs-sendmarc-dmarc-managed-services For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/rspamd.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Rspamd and Sendmarc DMARC Managed Services: 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