Resec vs Rspamd: Side-by-Side Comparison (2026)

Short answer

SMBs and mid-market teams drowning in file-based malware will find Resec's appeal in its CDR approach, which strips threats from documents without blocking them outright. The platform processes hundreds of file types including password-protected and multi-layer encrypted attachments in real time, with zero false negatives claimed across Exchange, Office 365, and Gmail. Skip this if you need behavior-based detection or threat hunting; Resec is file sanitization only, and it won't help you investigate what was actually in that malicious Word doc. Infrastructure teams managing high-volume mail servers should choose Rspamd for its lightweight filtering engine that doesn't degrade throughput the way heavier solutions do. The 2,396 GitHub stars and active open-source community signal solid production stability, and its modular architecture means you integrate exactly what you need into your MTA stack rather than replacing it. Skip this if your organization needs centralized policy management and reporting across multiple mail nodes; Rspamd is a filtering tool, not an enterprise email security platform.