Email Spam Test
Email spam test: check your email for spam trigger words. And what to write instead.
Paste your subject line and message. Every trigger word is highlighted where it sits, with a suggested replacement. Runs entirely in your browser — nothing is uploaded.
What this test covers: it checks your wording only, not inbox placement or authentication. To check SPF, DKIM and DMARC for your domain, use the DMARC, SPF and DKIM checker; to see whether a sent email passed them, paste its headers into the email header analyzer.
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Your email, flagged in place
Words to reconsider
An honest word about spam filters
Word lists are the oldest and weakest part of spam filtering. Gmail, Outlook and the corporate filters score mainly on sender reputation — whether your domain is authenticated with SPF, DKIM and DMARC, whether people open and reply to your mail, how long the domain has existed, and how many recipients mark you as spam.
A well-authenticated sender with good engagement can write "free" and land in the inbox. A brand-new domain sending cold mail from a free webmail address will hit spam writing nothing but plain prose.
So treat this as a copy tool, not a deliverability test. Removing hype and false urgency makes an email read better and reduces complaints, which is the part that actually feeds back into reputation. It won't fix an unauthenticated domain.
What matters more, roughly in order
1. SPF, DKIM and DMARC configured on your sending domain. 2. Sending from a domain you own rather than gmail.com or similar. 3. A warmed-up domain and sensible daily volume. 4. Recipients who opened and replied before. 5. A working unsubscribe path. 6. Then, a long way down, the words you chose.
See also: Want a full score out of 10? See how to use mail-tester.com.
What the spam word checker does
Some words and habits make an email read like a pushy sales blast, both to readers and to spam filters. This tool scans your subject line and message, highlights phrases that sound like hype, false urgency or junk mail, and suggests calmer wording. It also gives your copy a score out of 100 and checks things like capitals, exclamation marks and link count.
Benefits
- Words highlighted in placeYour email is shown back to you with each flagged phrase marked where it sits, and the strongest ones stand out.
- A suggestion for each wordEvery flagged phrase comes with a plainer replacement to try, or a note that it's best removed entirely.
- Grouped by typePhrases are labelled as money, urgency, hype, claims, pressure, finance, health or offer, so you can see the pattern in your writing.
- Subject line counts moreWords in the subject weigh more in the score, and the list tells you which ones appear there.
- Checks the shape of the emailIt looks at an all-caps subject, exclamation marks, repeated !! or ?!, heavy use of capitals, many links, repeated prices and very short messages.
- Simple score and verdictA score out of 100 sorts your email into Reads clean, Some things worth changing, or Reads like a sales blast.
- Honest about what it measuresIt's a copywriting check, not a deliverability test, and the page explains why sender setup matters more than wording.
Who it is for
- Small-business owners writing a promotional email or newsletter.
- Freelancers and salespeople polishing a cold outreach message before sending.
- Nonprofits and clubs drafting fundraising or event emails that shouldn't sound pushy.
- Copywriters checking client emails for hype and false urgency.
- Anyone whose emails seem to land in spam and wants to rule out the wording.
How to use it
- Paste your subject line into the first box.
- Paste your message into the second box.
- Click Check email to see your score, highlights and flags.
- Swap or remove the flagged words, then check again.
Your privacy
The check runs entirely in your browser. Your subject line and message are not uploaded or sent anywhere.
Common questions
Do spam trigger words really matter?
Far less than most articles suggest. Modern filters score mainly on sender reputation, authentication, engagement history and complaint rates. A well-authenticated sender can write the word free and land in the inbox; an unauthenticated one will hit spam writing nothing but plain prose.
So what actually affects whether my email reaches the inbox?
Roughly in order: SPF, DKIM and DMARC on your sending domain; sending from a domain you own rather than a free webmail address; a warmed-up domain and sensible daily volume; recipients who have opened and replied before; a working unsubscribe path. Wording comes a long way down that list.
Is this tool useful at all then?
Yes, as a copy tool. Removing hype and false urgency makes an email read better and reduces complaints, and complaints do feed back into reputation. Just don't expect it to fix an unauthenticated domain.
How many exclamation marks is too many?
Two or fewer in a whole message reads as human. Any in a subject line is unusual for mail that lands in the inbox, and repeated punctuation like !! or ?! reads as shouting to filters and to people.