Free tool
Email spam checker
Paste your email and see the spam trigger words, capitals, links and prices marked in place as you type. Then check the domain you send from, which decides more.
The spam words, capitals, links and prices in your email appear here, marked in place.
Sending cold email at volume? GEOboom finds the pages AI answers cite, writes to each publisher about their own page, and sends from warmed mailboxes it sets up for you.
See how it worksHow it works
Marks the words
Phrases from ads and scams, in five groups, highlighted where they are, with why each group hurts.
Flags the habits
Capitals, exclamation marks, prices, too many links and link shorteners: what filters distrust beyond words.
Points at the domain
Most of the decision is your sending domain. Check its SPF, DKIM, DMARC and blocklists with the domain health check.
Questions
How does the email spam checker work?
It reads your subject and email in your browser as you type and marks phrases that ads and scams lean on, in five groups: money, urgency, overpromise, shady and pushy. It also flags habits filters distrust: words and subjects in capitals, strings of exclamation marks, prices, more than a couple of links, link shorteners and "click here". Nothing is sent anywhere unless you ask for the rewrite.
Will removing spam words get my email into the inbox?
Not on its own. Gmail, Outlook and the rest decide mostly on the domain sending the mail, whether it passes SPF, DKIM and DMARC, whether it's on a blocklist, and how people have treated its mail before. Wording counts at the margin, and more for a new domain with no history. So fix the words here, then check your domain with the domain health check.
Is "free" really a spam word?
On its own, in one sentence, it won't sink an email. It's marked because it's a staple of ads, and a few such words together tip both filters and readers. Use the marks as a prompt to ask whether a plainer word says it better, not as a rule.
What does the risk level mean?
How many flagged words and habits there are for the length of the email, with scam phrases and failures like a link shortener weighing most. It's a reading of the text, not a test of where the email will land, which only a real send from your domain can show.
Should a cold email have an unsubscribe link?
A one-to-one cold email doesn't need a newsletter-style link, but in the US, CAN-SPAM asks commercial email to give a way to opt out and a postal address. A plain closing line that lets them say no is also the best protection you have: people who can't easily say no press the spam button, and that hurts your domain far more than any word.
Is it free?
Yes. The check runs in your browser and needs no sign-in. The rewrite, which hands back your email without what was flagged, needs you to sign in with your email, using a code rather than a password, and gives you 20 a day.