Email Spam Words Checker
Paste your cold email and instantly see which words trigger spam filters. Get a risk score, the exact triggers highlighted, and what to fix.
Triggered spam words
- Replace marketing-speak with conversational phrasing.
- Remove ALL CAPS — limit to brand names and acronyms.
- Use one exclamation mark per email body, max.
- Pair this with strong SPF/DKIM/DMARC for full deliverability.
What Is a Spam Words Check — and Why It Matters
A spam words check scans your email body for terms and patterns that email providers (Gmail, Outlook, Yahoo) historically associate with bulk promotional or fraudulent content. Words like "free", "guaranteed", "act now", ALL CAPS, and clusters of "!!!" or "$$$" all raise your spam score.
Modern spam filters use machine learning that weighs many signals together — words, sender reputation, authentication, engagement. One stray "free" in clean copy is usually fine. The problem is clusters: three or four trigger words in the same email, combined with shouty formatting, is the fastest way to land in spam.
This tool runs entirely in your browser — your email is never sent anywhere. Paste your cold email, get a risk score, see triggers highlighted in red/yellow/blue, and rewrite before sending.
How to Use the Spam Checker
Four steps to a spam-safe cold email.
1. Paste your email
Drop your full cold email body — greeting, body, sign-off — into the input above. Personalization tokens are ignored by the analyzer.
2. Run the check
Hit "Check for Spam Words". The engine scans against 150+ known trigger words plus ALL CAPS and excessive punctuation patterns.
3. Read the breakdown
See your risk score, the exact triggers found, and a colored highlight of every problem word inside your email.
4. Rewrite & re-check
Swap each trigger with a conversational alternative. Re-paste and re-check until you hit Low Risk (score under 20).
The Six Most-Hit Spam Triggers
These appear in the majority of cold emails that land in spam.
"Free"
The most-flagged word in cold email. Replace with the concrete value: "15-minute audit", "no-cost review".
"Guaranteed"
Reads as marketing copy. Use specific outcomes instead: "Our clients typically see 15% reply rates."
"Act now" / "Limited time"
Classic urgency triggers. Replace with calm specificity: "Open Tuesday or Thursday?"
ALL CAPS words
FREE, URGENT, NEW — any 3+ letter word in caps gets penalized. Reserve caps for brand names and acronyms.
"!!!" and "$$$"
Repeating exclamation marks or dollar signs is one of the strongest spam signals. Use at most one "!" per email.
"Winner" / "Congratulations"
Lottery and giveaway language. Never appropriate in cold B2B email — remove entirely.
Why Spam Words Hurt Revenue
Avoiding spam triggers isn't a vanity metric — it's the bottom of your sales funnel.
Spam = invisible
An email in the spam folder has roughly a 1% chance of being read. Optimizing copy beats trying to "win them back" later.
Reputation compounds
Each email flagged as spam hurts your domain reputation, making future emails (even clean ones) harder to deliver.
Recovery is slow
It can take 4–8 weeks to recover sender reputation after a deliverability dip. Prevention is far cheaper than the rebuild.
Spam-Safe Email Best Practices
Pair these with a clean copy check for the best deliverability.
Write like a peer
Conversational, lowercase, specific. If it doesn't sound like an email you'd send a friend, recipients (and filters) will notice.
Authenticate your domain
SPF, DKIM, and DMARC reduce spam-folder placement by 30–50%. Run our auth checker first.
Warm your domain
New domains start cold. Ramp sending volume gradually (see warmup calculator) before scaling.
Personalize beyond the name
Personalization signals legitimate 1:1 outreach. Generic mass-mail patterns are the strongest spam signal of all.
Keep it short
50–150 words. Long emails accumulate more trigger words and lower engagement, both of which hurt placement.
Test every variant
Re-check every time you tweak. New copy drifts toward triggers as you optimize for clicks. Make spam checks routine.
Common Mistakes
What we see repeatedly in cold emails that go to spam.
Marketing copy in cold email
Brochure language ("revolutionary platform", "industry-leading solution") triggers filters. Cold emails should read 1:1, not 1:many.
Image-heavy templates
Cold email isn't email marketing. Skip the banner image and use plain text. Image-only emails are flagged automatically.
Tracked links everywhere
Heavy link tracking shows up in headers and hurts placement. One CTA link, no tracking redirects if possible.
"Not spam" disclaimers
Phrases like "this is not spam" or "I'm not selling anything" are themselves spam signals. Just write a good email.
Fixing copy without fixing infrastructure
Spam-safe copy on an unauthenticated domain still goes to spam. Pair this check with SPF/DKIM/DMARC verification.
Ignoring engagement signals
If recipients delete without opening or mark as spam, your reputation drops fast. Better targeting beats clever copy.
Frequently Asked Questions
Everything you need to know about spam-safe cold email.
Spam trigger words are terms that email spam filters historically associate with promotional or fraudulent content — "free", "guaranteed", "act now", "limited time". Using too many in a single email lowers your sender reputation and routes the message to spam.
No. Modern filters use the combination of words, sender reputation, authentication (SPF/DKIM/DMARC), and engagement signals. One isolated trigger word in legitimate context is usually fine — the problem is clusters of triggers combined with weak authentication or low engagement.
Our score is 0–100 (lower is safer). 0–20 is Low Risk: the email is unlikely to trigger spam filters. 21–50 is Medium Risk: rewrite the flagged sections. 51+ is High Risk: filters will likely route the email to spam or promotions.
Yes. Words written entirely in capital letters (3+ characters) are a classic spam signal — they read as shouting. Limit to brand names and acronyms (SDR, SaaS, B2B). Avoid CAPS on common words like FREE or URGENT.
Yes. Multiple exclamation marks ("!!!") and dollar sign repetitions ("$$$") are strong spam signals. Use at most one "!" per email body, and avoid currency repetition entirely.
Each spam trigger word adds 10 points. Each ALL CAPS word adds 8 points. Each excessive-punctuation cluster (!!, $$, etc.) adds 15 points. The total is capped at 100. Lower is better.
No — spam-word avoidance is one of several deliverability factors. You also need SPF/DKIM/DMARC authenticated, a warmed sending domain, good content-to-engagement ratio, and a clean recipient list. Check the related tools for each.
Not necessarily. "Free" in commercial promotional contexts ("Buy 1 get 1 FREE!!!") is strongly penalized. "Free" in a value-first phrase ("quick free audit", "free 15-minute call") used once with otherwise-clean copy is usually fine, especially with strong authentication.
No. The analyzer runs entirely in your browser. Your email body never leaves your device and is not stored, logged, or transmitted to any server.
Run it on every cold email template before adding it to your sequence, and re-check whenever you tweak copy. New variants drift toward spam triggers as you optimize for clicks.
More Cold Email Tools From LeadFindy
Stack these for full-stack deliverability.
Copy Analyzer
Score email copy across 6 dimensions.
OpenSubject Line Tester
Score and optimize subject lines.
OpenAuth Checker
SPF, DKIM, DMARC verification.
OpenTemplate Builder
Four proven cold email frameworks.
OpenWarmup Calculator
Plan a safe sending ramp.
OpenLead List Validator
Validate syntax & deliverability.
OpenWant a Done-For-You Cold Email System That Never Goes to Spam?
We handle deliverability, infrastructure, copy, and sending — so your emails land in inboxes, not spam folders.