MailGuard vs Rspamd: side-by-side comparison (2026)

MailGuard: Cloud-based managed email filtering against phishing, ransomware & BEC, built by MailGuard.

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.

The table above shows where their features, integrations, deployment and company size fit differ.

MailGuard is made by MailGuard. Rspamd is open-source with 2,396 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Often, yes. MailGuard and Rspamd are both Email Security Platforms products, and both cover Spam Prevention. Key differences: MailGuard is Commercial while Rspamd is Free, Rspamd is open-source. Use the table above to see where features, deployment and company size fit differ.