Free tool
Spam word checker for cold emails.
Paste your email to see risky phrases marked in the text, plus capitals, exclamation marks, links and length. It runs as you type, and nothing leaves your browser.
The short answer
A spam word checker looks for words and habits that make an email read like a promotion, such as "act now", "100% free" or lots of capitals. Words alone rarely send you to spam, since filters weigh your domain's reputation and whether people reply far more. But they do make an email feel like marketing to the person reading it.
What really decides whether you land in spam
- Your setup. SPF, DKIM and DMARC need to be in place.
- Your reputation. Spam complaints and bounces count against you. Keep bounces low by verifying addresses.
- How people react. Replies help. Being ignored or marked as spam hurts.
- Your wording. It matters least to filters, but the most to the person deciding whether to reply.
About our list
No email provider publishes a list of banned words. Ours is a judgement call: phrases that are common in promotional mail. A flagged word isn't a problem by itself, because "free" in a normal sentence is fine. Read each one in context, and ask whether it sounds like one person writing to another.
For wording that sounds human, see our cold email templates.
Questions
Do spam words really send email to spam?
Rarely by themselves. Modern filters care more about your domain's reputation, your setup and how people respond. Words still matter because they change how your email reads.
What are examples of spam words?
Phrases such as "act now", "100% free", "risk free", "guaranteed" and "click here", especially when several appear together.
Is there an official list of spam words?
No. Email providers don't publish one. Lists like ours come from what's common in promotional mail.
Do you see what I paste?
No. It's checked in your browser, and nothing is sent anywhere.
Find the people worth writing to.
Lead Finder looks for people with a reason to buy, then starts the conversation on LinkedIn, X and email from your own accounts.