Email Deliverability Spam Checker
Score email subject and body for spam triggers, ALL-CAPS, link density, shorteners, image balance, and missing unsubscribe. Per-rule verdicts, free and offline.
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What is Email Deliverability Spam Checker?
Email Deliverability Spam Checker scores a pasted subject line and body against eight spam-filter heuristics: trigger words, ALL-CAPS abuse, exclamation overload, link density, URL shorteners, image-to-text balance, missing unsubscribe, and deceptive subject patterns - each with its own verdict, points, and instant re-scoring.
Key Benefits
- Catch the exact words and patterns that push mail to junk
- Per-rule points show what to fix first, not just a vague score
- Shortener and link-density checks protect your sender reputation
- Image-balance check keeps newsletters readable for filters
- Completely offline - confidential drafts stay on your device
Common Use Cases
- •Pre-flight checking marketing newsletters before a campaign send
- •Reviewing cold-outreach emails for spammy wording
- •Auditing transactional templates during email deliverability fixes
- •Teaching marketing teams which phrasing trips filters
How to Check an Email for Spam Signals
- Paste subject and body: Enter the subject line and the full body of the email you plan to send.
- Read the rule verdicts: Each rule shows its status and points - fix the failing rules first, starting with the heaviest ones.
- Re-score until green: Edit the wording, remove shorteners, and rebalance images, then re-score until the verdict turns good.
Key Features
- 20-entry spam trigger word list with the exact hits shown
- Weighted rules: caps ratio, exclamation abuse, link density, shorteners
- Image-to-text balance check that catches image-heavy layouts
- Unsubscribe presence check required for marketing mail
- 0-100 score with good / warn / bad verdict and per-rule points
- Fully offline analysis - drafts never leave your device