Spam Words Checker
Paste your subject line or email body and instantly see which words and phrases trigger spam filters. Fix them before you send.
How to stay out of the spam folder
Avoiding spam folders takes more than choosing the right words. Mailbox providers evaluate your overall sending reputation, technical setup, and subscriber engagement before deciding where your emails belong.
To improve deliverability:
- Authenticate your domain. Configure SPF, DKIM, and DMARC to prove your emails are legitimate.
- Maintain a healthy sender reputation. Send to engaged subscribers, avoid spam complaints, and monitor bounce rates.
- Write naturally. Avoid excessive promotional language, misleading subject lines, and unnecessary capitalization or punctuation.
- Keep your email list clean. Remove invalid, inactive, and bounced addresses regularly.
- Warm up new domains gradually. Increase sending volume over time instead of sending large campaigns immediately.
- Test before sending. Check your content for spam trigger words and verify inbox placement before launching important campaigns.
Strong deliverability comes from combining quality content with good sending practices. Even the best email copy can struggle if your domain reputation or authentication isn't properly configured.
201 spam words and phrases to avoid
Spam filters don't block emails because of a single word. Instead, they evaluate your message alongside factors such as sender reputation, authentication, engagement, and formatting. Even so, overly promotional language, misleading claims, and aggressive sales copy can contribute to a higher spam score.
The words and phrases below are commonly associated with spam emails. Use them carefully, especially in subject lines and sales-heavy campaigns.
| Category | Spam Words & Phrases |
|---|---|
| Money and finance | Free money, Cash bonus, Double your money, Guaranteed income, Extra income, Financial freedom, Risk free, Investment opportunity, Lowest price, Best price, Cheap, Discount, Bargain, Save big, Save now, Debt relief, Loan approval, Instant cash, Credit, Credit card offer, Refinance, Mortgage rates, No hidden fees, Money back, Refund guaranteed, Increase sales, Increase revenue, Profit, Passive income, Millionaire |
| Sales and promotions | Buy now, Order now, Shop now, Limited offer, Special offer, Exclusive offer, Free gift, Free trial, Free sample, Free consultation, Bonus, Congratulations, Winner, Prize, Claim now, Redeem, Lowest cost, Huge savings, Amazing deal, Best deal, Unbeatable price, New customers only, One-time offer, No obligation, Satisfaction guaranteed, Risk-free trial, Subscribe today, Sign up now, Instant access, Limited stock, While supplies last, Clearance, Exclusive discount, Premium offer, Wholesale prices |
| Urgency and scarcity | Act now, Hurry, Don't wait, Today only, Ends today, Ends soon, Last chance, Final notice, Urgent, Immediate action, Time sensitive, Deadline, Expires today, Expires soon, Before it's gone, Offer ends, Respond now, Apply today, Limited time, Final opportunity, Must read, Important update, Time is running out, Don't miss out, Once in a lifetime |
| Health and wellness | Miracle cure, Lose weight, Weight loss, Burn fat, Anti-aging, Reverse aging, No prescription, Doctor approved, Clinically proven, Fast results, Instant results, Cure, Eliminate pain, Natural remedy, Detox, Cleanse, Boost metabolism, Increase energy, Improve performance, Secret formula, Guaranteed results, Maximum strength, No side effects, Pharmaceutical grade, Medical breakthrough, Cosmetic surgery, Diet pill, Muscle gain, Enhance performance, Youthful appearance |
| Business and marketing | Work from home, Be your own boss, Home business, Business opportunity, Earn from home, Marketing secret, Growth hack, Proven system, Proven method, Secret strategy, Unlimited potential, Generate leads, Instant success, Exclusive access, Insider information, VIP offer, Premium access, Join today, Early access, Membership offer |
| Cryptocurrency and investing | Crypto, Bitcoin investment, NFT, Web3, Blockchain profits, Trading signals, Guaranteed returns, High ROI, Passive investing, Wealth building, Token sale, Presale, ICO, Buy the dip, Moonshot |
| Adult and gambling | Casino, Online casino, Gambling, Sports betting, Jackpot, Winner guaranteed, Poker, Roulette, Slots, Adult content, XXX, Dating, Singles, Meet singles, Hook up, Escort, Sexy, Hot singles, Adult only, Explicit |
| Formatting and deceptive language | 100% free, 100% guaranteed, No catch, Click here, Open immediately, Read now, Important message, Dear friend, Dear customer, Verify your account, Confirm immediately, Update payment, Account suspended, Final warning, Congratulations!, !!!, $$$, ALL CAPS, RE:, FWD:, Urgent response, Confidential, This isn't spam, Click below, Act immediately, Limited availability |
Frequently asked questions
What is an email spam words checker?
An email spam words checker scans your subject line and email content for words, phrases, formatting, and other elements commonly associated with spam. It highlights potential issues so you can improve your copy before sending a campaign.
Do spam words still matter?
Yes, but they're only one part of the equation. Modern spam filters also consider sender reputation, authentication (SPF, DKIM, and DMARC), engagement, bounce rates, and many other signals. Using a few 'spam words' won't automatically send your email to the spam folder, but excessive promotional language can contribute to filtering.
How can I improve my email deliverability?
Focus on the fundamentals: authenticate your domain, maintain a good sender reputation, send to permission-based subscribers, keep your email list clean, and test your campaigns before sending. Combining these practices with clear, natural email copy gives your messages the best chance of reaching the inbox.