Trigger-Word Trouble - How to Keep Your Emails Out of the Spam Folder
Gmail, Outlook and other providers rely on sophisticated filters to shield users from scams and unwanted sales pitches. One of their strongest signals is language that mirrors past spam. Re-using that vocabulary—even innocently—raises the risk that a perfectly legitimate campaign never reaches the inbox.
This guide explains why certain words trigger filters and presents four themed word-banks you should treat with caution. Apply the deliverability tips that follow to keep messages in front of customers, not spam bots.
Why Filters Flag Specific Words
- Historical abuse – these terms appeared in thousands of fraudulent emails, so filters assign them higher risk scores.
- Over-promise language – unrealistic claims (for example, “double your income”) imply scams.
- High-pressure tactics – urgency phrases (“act now”) resemble boiler-room sales.
- Legal or financial jargon – formal phrases in bulk mail often disguise unsolicited pitches.
Context, design and sender reputation also matter. Avoiding—or at least minimising—trigger words removes an easy reason for a filter to divert your campaign.
Words That Make Exaggerated Claims and Promises
Spam filters associate these with dishonest offers. Swap them for concrete benefits and validated social proof.
100% more 100% free 100% satisfied Additional income Be your own boss Best price Big bucks Billion Cash bonus Cents on the dollar Consolidate debt Double your cash Double your income Earn extra cash Earn money Eliminate bad credit Extra cash Extra income Expect to earn Fast cash Financial freedom Free access Free consultation Free gift Free hosting Free info Free investment Free membership Free money Free preview Free quote Free trial Full refund Get out of debt Get paid Giveaway Guaranteed Increase sales Increase traffic Incredible deal Lower rates Lowest price Make money Million dollars Miracle Money back Once in a lifetime One time Pennies a day Potential earnings Prize Promise Pure profit Risk-free Satisfaction guaranteed Save big money Save up to Special promotion
Words That Create Unnecessary Urgency and Pressure
Use deadlines sparingly and back them with genuine scarcity or calendar logic rather than hype.
Act now Apply now Become a member Call now Click below Click here Get it now Do it today Don’t delete Exclusive deal Get started now Important information regarding Information you requested Instant Limited time New customers only Order now Please read See for yourself Sign up free Take action This won’t last Urgent What are you waiting for? While supplies last Will not believe your eyes Winner Winning You are a winner You have been selected
Words That Suggest Shady or Unethical Behaviour
If your offer is legitimate, use transparent language that reassures rather than raises suspicion.
Bulk email Buy direct Cancel at any time Check or money order Congratulations Confidentiality Cures Dear friend Direct email Direct marketing Hidden charges Human growth hormone Internet marketing Lose weight Mass email Meet singles Multi-level marketing No catch No cost No credit check No fees No gimmick No hidden costs No hidden fees No interest No investment No obligation No purchase necessary No questions asked No strings attached Not junk Notspam Obligation Passwords Requires initial investment Social security number This isn’t a scam This isn’t junk This isn’t spam Undisclosed Unsecured credit Unsecured debt Unsolicited Valium Viagra Vicodin We hate spam Weight loss Xanax
Jargon, Legalese and Miscellaneous Triggers
Explain benefits in plain English and add legal language only when regulations require it.
Accept credit cards Ad All new As seen on Bargain Beneficiary Billing Bonus Cards accepted Cash Certified Cheap Claims Clearance Compare rates Credit card offers Deal Debt Discount Fantastic In accordance with laws Income Investment Join millions Lifetime Loans Luxury Marketing solution Message contains Mortgage rates Name brand Offer Online marketing Opt in Pre-approved Quote Rates Refinance Removal Reserves the right Score Search engine Sent in compliance Subject to… Terms and conditions Trial Unlimited Warranty Web traffic Work from home
Six Deliverability Practices to Complement Careful Wording
- Run a spam check before every send; most ESPs flag risky phrases and code issues.
- Clean your list regularly—remove hard bounces and chronically inactive contacts.
- Follow CAN-SPAM and GDPR: truthful sender info, clear subject lines, visible address, one-click unsubscribe.
- Use confirmed (double) opt-in to reduce fake addresses and improve engagement metrics.
- Segment and personalise – relevant content boosts opens and signals legitimacy to mailbox providers.
- Keep cold outreach 1-to-1 – targeted research, personal relevance and low volume distinguish outreach from spam.
Further notes...
Spam filters evolve constantly, but their aim is consistent: protect users from deceitful or irrelevant mail. By steering clear of proven trigger words, writing transparent copy and following sound deliverability habits, you maximise your chance of landing in the inbox—and earning the attention your emails deserve.