Why Do My Emails Look Spammy? The Top 15 Spam Trigger Words to Remove Immediately

By: Author
Published: October 2, 2025
Why Do My Emails Look Spammy? The Top 15 Spam Trigger Words to Remove Immediately

"You've spent hours crafting the perfect email campaign, but your open rates are disappointing. The problem might not be your content, but specific words that trigger spam filters. In this article, we'll explore the top spam trigger words and how to replace them with more effective alternatives."

You've spent hours crafting the perfect email campaign, but your open rates are disappointing. The problem might not be your content, but specific words that trigger spam filters. In this article, we'll explore the top spam trigger words and how to replace them with more effective alternatives.

Understanding Spam Filters

Email service providers use sophisticated algorithms to protect users from unwanted emails. These filters analyze various elements of your email, including the content, sender reputation, and specific keywords that are commonly associated with spam.

When your email contains too many of these trigger words, it's more likely to be flagged as spam or sent directly to the promotions folder, where it might never be seen by your intended recipient.

Note: Even if you have permission to email someone, using spam trigger words can still negatively impact your deliverability.

The Top 15 Spam Trigger Words

Here are the most common words and phrases that trigger spam filters, along with suggestions for better alternatives:

1. Free

High Risk

While "free" can be effective in marketing, it's heavily flagged by spam filters, especially when used excessively or in all caps.

Better alternatives:

Complimentary, no cost, at no charge, included, on the house

2. Act Now

High Risk

This phrase creates a false sense of urgency that spam filters recognize as a common tactic in spam emails.

Better alternatives:

Don't miss out, limited availability, reserve your spot, join now

3. Guarantee

Medium Risk

While not as risky as some words, "guarantee" can still trigger filters when overused or combined with other trigger words.

Better alternatives:

Assurance, promise, confidence, warranty, commitment

4. No Obligation

High Risk

This phrase is commonly used in spammy sales pitches, making it a red flag for filters.

Better alternatives:

Zero commitment, try risk-free, explore without pressure

5. Make Money

High Risk

Phrases promising financial gain are heavily flagged due to their association with scams and pyramid schemes.

Better alternatives:

Increase earnings, grow your income, financial opportunity

6. Opportunity

Medium Risk

When used in certain contexts, "opportunity" can trigger filters, especially when paired with financial terms.

Better alternatives:

Possibility, potential, prospect, chance

7. Winner

High Risk

Announcing that someone is a "winner" is a classic spam tactic, particularly in lottery and prize scams.

Better alternatives:

Congratulations, selected, chosen, awarded

8. Cash

Medium Risk

Mentioning cash payments or prizes can raise red flags with spam filters.

Better alternatives:

Payment, funds, money, reimbursement

9. Cheap

High Risk

This word is commonly associated with low-quality products and spammy sales tactics.

Better alternatives:

Affordable, economical, budget-friendly, value-priced

10. Miracle

Medium Risk

Exaggerated claims of miraculous results are common in spam emails, especially for health products.

Better alternatives:

Effective, powerful, transformative, breakthrough

11. Urgent

High Risk

Creating false urgency is a classic spam tactic that filters are trained to recognize.

Better alternatives:

Important, time-sensitive, priority, expedited

12. Risk-Free

Medium Risk

While appealing to customers, this phrase is heavily used in spam marketing.

Better alternatives:

No-risk, satisfaction guaranteed, try with confidence

13. Special Promotion

High Risk

This phrase is so commonly used in spam that it's become a major red flag for filters.

Better alternatives:

Exclusive offer, limited-time deal, special offer for you

14. Congratulations

Medium Risk

While seemingly innocent, this word is heavily used in scam emails announcing fake wins.

Better alternatives:

Good news, you're in, great news, we're pleased to inform you

15. Buy Direct

High Risk

This phrase is commonly associated with spammy sales tactics and questionable business practices.

Better alternatives:

Purchase now, shop directly, order from us

Additional Tips to Avoid Spam Filters

Avoid Excessive Punctuation

Multiple exclamation points!!! or ALL CAPS text are clear spam indicators. Use normal punctuation and sentence case.

Balance Text and Images

Emails with only images and little text are often flagged as spam. Maintain a healthy text-to-image ratio.

Use Reputable Links

Avoid shortened URLs or links to suspicious websites. Use your own domain for links when possible.

Authenticate Your Emails

Implement SPF, DKIM, and DMARC records to verify your domain and improve deliverability.

Final Thoughts

While avoiding spam trigger words is important, it's only one piece of the email deliverability puzzle. Focus on creating valuable, relevant content for your subscribers, maintaining a good sender reputation, and following email marketing best practices.

Remember that spam filters are constantly evolving, so regularly review your email content and stay updated on the latest trends in email deliverability to ensure your messages reach their intended destination.

Email Deliverability
Last updated: October 2, 2025
Tags: Blog Post