Free Email Spam Checker
Paste your email copy and get a spam score. We scan for trigger words, formatting issues, and patterns that land you in spam.
How it works
Paste your email subject and body
Works with plain text or HTML. Include the subject line for a complete check.
We scan for 200+ spam triggers
Checks trigger words, excessive caps, link ratios, formatting, and more.
Get a score with specific fixes
See exactly which words and patterns flagged, with suggestions to fix each one.
Why this matters
Spam filters are getting smarter, but they still catch legitimate emails. Words like "free," "guarantee," and "act now" can trigger filters even in professional outreach. Checking your copy before sending prevents wasted sends and protects your sender reputation.
Catch spam triggers before sending
SendKit scans every email in your sequence for spam triggers automatically. No manual checks needed.
Pre-send checks
Automatically scan every email before it leaves your outbox
Deliverability analytics
Track open rates, spam rates, and placement across all campaigns
Spam rate alerts
Get notified when your spam rate exceeds safe thresholds
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Got questions? We've got answers.
We check for 200+ known spam trigger words and phrases, excessive capitalization, too many exclamation marks, high link-to-text ratio, image-heavy content, and common formatting patterns that spam filters flag.
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