Free Cold Email Spam Trigger Checker

Scan your email for risky words that trigger spam filters and hurt your deliverability.

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Why Cold Emails Land in Spam

Email providers like Gmail, Outlook, and Yahoo use sophisticated filters to protect users from spam. These filters scan for specific trigger words, formatting patterns, and sender reputation signals. Even one spam trigger word can drastically reduce your deliverability rates.

Common Spam Trigger Words to Avoid

Our spam checker scans for over 100 common trigger words across these categories:

  • Urgency words: "Act now", "Limited time", "Urgent", "Hurry"
  • Money words: "Free", "Cash", "Prize", "$$$", "Earn money"
  • Guarantee words: "100% guaranteed", "Risk-free", "No risk"
  • Overhype words: "Amazing", "Incredible", "Revolutionary"

Beyond Words: Personalization Matters

Even a perfect email with zero spam words will get ignored if it feels generic. Email recipients can instantly tell when a message is part of a mass blast versus truly personalized. This is why AI personalization is critical for cold email success.

Want to maximize your email results?

Use our Free DMARC & SPF Generator to set up domain authentication, or our ROI Calculator to see how much revenue you could gain with better deliverability.

Ready to Send Personalized Cold Emails?

WarmOpener uses AI to research each prospect and write custom email copy that references their company, role, and pain points automatically.

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Free Cold Email Spam Checker & Trigger Word Highlighter