{"id":"webserverhu-spamassassin","name":"spamassassin","af_score":26.2,"security_score":32.8,"reliability_score":37.5,"what_it_does":"SpamAssassin is an open-source email spam and malware-adjacent filtering system. It scores incoming email using configurable rules (e.g., Bayesian learning, DNS-based checks, and pattern/rule matching) and can produce a classification result (spam/ham) and add headers for downstream processing.","best_when":"You have control of an MTA/MDA or mail pipeline and want a configurable, on-prem spam-scoring engine.","avoid_when":"You need a managed SaaS with a REST/GraphQL API, OAuth, rate limits, and webhooks out of the box.","last_evaluated":"2026-04-04T21:33:26.388207+00:00","has_mcp":false,"has_api":false,"auth_methods":["None (local/self-hosted)"],"has_free_tier":false,"known_gotchas":["No first-class agent-friendly network API to call; an agent would typically need to operate by editing config, invoking CLI/tools, or integrating with an MTA.","Behavior is highly dependent on configuration (rules, DNS/RBLs, bayes DB state), so reproducibility requires careful config/version control."],"error_quality":0.0}