Email Spam Score Checker methodology

The checker runs entirely in the browser on the subject line and HTML or plain-text body you provide. No message is sent; no DNS or IP reputation lookups occur. Treat it as a pre-send content hygiene pass.

• 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).

• 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

Example: a promo email scores high risk because the subject is ALL CAPS with multiple exclamation marks, the body stacks “act now” lexicon with five tracking short links, and the HTML is image-heavy with weak text alternative. Removing caps and one spam phrase alone may not clear a combo multiplier if links and formatting remain aggressive.

• Clear the densest combo first (lexicon + formatting + links).
• Re-check after each cluster of edits; stacked rules interact.
• Still validate authentication and list hygiene outside this tool.