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Methodology · spam-v3-2026-07

Email Spam Score Checker methodology

Content-side pre-send risk scorer inspired by SpamAssassin-style rules. Fully client-side. Not deliverability reputation, authentication, or inbox placement prediction.

Rule-basedBrowser-onlyNo IP / DNS checks

Scoring model

01How risk is calculated

  • Independent symbolic rules fire with weights (lexicon, subject, formatting, links, HTML, structure, phishing cues, compliance).
  • Density and combo multipliers raise stacked risk (e.g. spam phrases + ALL CAPS + many tracking links).
  • Limited ham credits reduce raw points — hard-capped so “clean” tokens cannot erase a critical stack.
  • Raw points map to a 0–100 risk index and an SA-like 0–10 curve (steep for marketers who want hard gates).

Risk pillars

02What gets inspected

  • Lexicon — spam / hard-sell phrases
  • Subject — length, punctuation, deceptive patterns
  • Formatting — caps density, exclamation spam, symbol noise
  • Links — count, domain diversity, shortener / tracking hygiene
  • HTML — image-heavy ratio, markup risk patterns
  • Structure · phishing cues · compliance — missing unsubscribe / legal patterns where relevant