🚫 Free Email Spam Checker

Check any email for spam triggers before you hit send. Our analyzer scans 15+ signals — authentication, content patterns, technical headers — and gives you a clear 0-100 score with specific fixes.

🔍 Open Spam Checker Tool →

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Authentication Check

Verifies SPF, DKIM, and DMARC status for your sending domain. Missing auth = instant spam flag.

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Content Analysis

Detects spam trigger words, ALL CAPS abuse, excessive punctuation, short URLs, and HTML-only body.

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Technical Headers

Checks for missing Message-ID, Date, From, To headers. Flag incomplete or malformed headers.

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Blacklist Detection

Checks your domain's MX IPs against Spamhaus, SpamCop, Barracuda, SORBS, and PSBL.

📊 Understanding Your Spam Score

80-100 Safe to Send — Your email is well-configured. Low risk of landing in spam.

40-79 Needs Improvement — Some issues flagged. Fix the highlighted problems before sending.

0-39 High Risk — Multiple critical issues. Email will likely go to spam or get rejected.

⏱️ How It Works

1
Paste your email content
Drop in the raw email including headers (optional) or just the body text.
2
Instant analysis
Our engine scans 15+ signals across authentication, content patterns, and technical formatting.
3
Get your score + fixes
See your overall score (0-100), what's dragging it down, and exactly how to fix each issue.

💡 Who Uses Our Spam Checker?

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Email Marketers — Test campaigns before blasting to your list. Catch trigger words that send you to spam.

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Business Owners — Make sure your transactional emails (invoices, receipts, welcome emails) actually reach customers.

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Developers — Debug SMTP integrations. Verify email formatting before deploying to production.

❓ Frequently Asked Questions

How accurate is the spam score?

Our checker analyzes real signals that major providers (Gmail, Outlook, Yahoo) use in their filtering algorithms. While no tool can guarantee inbox placement with 100% certainty, our score is based on documented spam-filtering criteria. Scores below 40 almost always indicate deliverability problems.

Do I need to include email headers?

Headers are optional but recommended. If you include them, we can check authentication results (SPF/DKIM passes) and header completeness. If you only paste the body, we'll still check content-based spam signals.

Is this really free?

Yes — completely free. No signup, no ads, no limits. We also offer Pro plans starting at €9/mo for API access, bulk checking, and advanced reporting, but the web tool is free forever.

What's the difference between this and the Email Checker?

The Email Checker audits your domain's configuration (MX, SPF, DKIM, DMARC, blacklists). The Spam Checker analyzes a specific email message — its content, structure, and triggers. Use both for maximum deliverability.