Free Email Spam Checker · test if your email hits spam

Blog Thimble Image
Free tool · No sign-up

Free Email Spam Checker

Paste your subject line and email body: the tool spots spam trigger words, capitals, punctuation, links and risky symbols, then gives you a deliverability score and concrete fixes, right in your browser.

Your email

The analysis runs as you type.

Insert a risky example

Deliverability score

Content analysis in real time.

Enter a subject or content to start the analysis.
0

·

·

    The analysis covers content, in your browser. Real deliverability also depends on authentication (SPF, DKIM, DMARC) and your sender reputation.

    Clean content helps you pass the filters. But landing in the inbox depends mostly on your sender reputation and your recipients' engagement. We'll show how to go further with Gojiberry below.

    What is an email spam checker?

    An email spam checker analyzes the content of a message to spot the signals that set off spam filters. It inspects the subject and body for trigger words, excessive capitals, aggressive punctuation, suspicious links and risky symbols, then sums it all up with a deliverability score.

    It's a useful reflex before sending a campaign or a cold email: content that piles up spam signals ends up in the junk folder, no matter how good your offer is. Cleaning the content upfront maximizes your chances of landing in the inbox.

    Trigger words spotted

    free, click here, limited offer, win: the terms that alert filters are highlighted.

    Format signals

    Capitals, exclamation marks, $$$ and %%% symbols: the excesses that scream spam are counted.

    Subject analyzed

    Length, capitals and punctuation of the subject, the first thing filters and readers see.

    Private

    The analysis runs in your browser: no content is sent or stored.

    How the spam checker works

    The tool runs a series of instant checks on the subject and body, without sending anything. Each detected signal lowers the deliverability score and triggers a suggested fix.

    The signals analyzed

    Signal
    What's checked
    Impact
    Trigger words
    Classic spam terms (free, click here...)
    High
    Capitals
    Words or subject in ALL CAPS
    High
    Punctuation
    Multiple exclamation marks (!!!)
    Medium
    Symbols
    $$$, aggressive percentages
    Medium
    Links
    Number of links and URL shorteners
    Medium
    Good to know: this tool assesses content, just one of the deliverability factors. Actual inbox placement also depends on authentication (SPF, DKIM, DMARC), your domain reputation and your recipients' engagement.

    Your emails land in spam: where's the real problem?

    Clean content helps, but it's only part of the equation. Take this 30-second quiz to find what's really dragging down your deliverability.

    Quiz · 30 seconds
    Why do your emails land in spam?

    3 quick questions to find your real bottleneck, and the fix that matches.

    QUESTION 1 / 3
    1 of 3
    🎯
    Your diagnosis

      Try Gojiberry for free

      Beyond content: deliverability comes from relevance, with Gojiberry

      Cleaning your content lowers the spam risk, but modern filters mostly look at how your recipients react. Writing to people who expect nothing from you drives deletes and complaints, which durably damage your reputation. Gojiberry is an AI-powered, multi-channel prospecting platform: it tracks 30+ buying-intent signals across socials and the web, surfaces leads who are in-market right now, then triggers personalized outreach across channels.

      The result: you write to interested contacts, at the right moment. Engagement rises, complaints fall, and your deliverability protects itself, far more than word choice alone ever could.

      Approach
      Content check alone
      With Gojiberry
      Lever
      Words and message format
      Relevance and engagement
      Recipients
      Undifferentiated list
      Prospects with buying intent
      Timing
      None
      Triggered by a real signal
      Effect on reputation
      Limited
      Lasting, via engagement
      Goal
      Fewer risky words
      More qualified replies

      Go from clean content to qualified replies

      Let Gojiberry spot the prospects who are actively searching and launch personalized outreach for you.

      Automate my prospecting

      Pros and limits of a spam checker

      It's a very useful control tool, as long as you know what it covers and what it doesn't.

      Pros
      • Free and instant, with no sign-up and no test send.
      • Spots trigger words and format excesses.
      • Gives concrete suggestions to improve subject and body.
      • Private: 100% in-browser analysis.
      Limits
      • Only analyzes content, not authentication or reputation.
      • Doesn't predict real inbox placement at 100%.
      • Doesn't replace a test send to your own mailboxes.
      • A clean email is still useless if it targets the wrong people.

      Best practices to avoid spam

      Content is just one factor. Here's how to protect your deliverability over time.

      Polish the subject and body

      Avoid capitals, rapid-fire exclamation marks and trigger words. Write like you're talking to a human: a clear subject and a useful message land better than loud promises.

      Authenticate your domain

      Set up SPF, DKIM and DMARC. Without authentication, even perfect content struggles to reach the inbox.

      Send to engaged contacts

      Filters watch opens, replies and deletes. A clean, interested list protects your reputation; cold bulk sends destroy it.

      Test before you send

      Beyond content analysis, send a test to several mailboxes (Gmail, Outlook) to check real placement before a big campaign.

      Spam checker or prospecting platform?

      Both improve your sends, but at different levels. One cleans the message, the other makes sure it goes to the right people.

      Criterion
      Spam checker
      Gojiberry
      Goal
      Clean the content
      Generate qualified meetings
      Prospect detection
      None
      30+ buying-intent signals
      Outreach
      None
      Automated and personalized
      Deliverability lever
      Content
      Relevance and engagement
      Price
      Free
      Free trial, then subscription
      The right combo: use this checker for clean content, and let Gojiberry target the prospects who are genuinely in-market. A polished message sent to the right people, that's where deliverability is won.

      FAQ · email spam checker

      Is the tool free?+

      Yes, the tool is completely free and requires no sign-up. You paste your email and immediately get a deliverability score and suggestions.

      Does the tool send my email anywhere?+

      No. All analysis runs in your browser. Neither the subject nor the body is sent to a server or stored.

      Does a good score guarantee avoiding spam?+

      No. Content is just one factor among others. Real placement also depends on authentication (SPF, DKIM, DMARC), your domain reputation and your recipients' engagement. A good score lowers the risk, it doesn't remove it.

      Which words trigger spam?+

      The classics: free, click here, limited offer, win, cash, no obligation, 100% guaranteed, as well as capitals, rapid-fire exclamation marks and $$$ symbols. The tool highlights the ones it finds in your message.

      How do I improve deliverability beyond content?+

      Authenticate your domain, keep a clean and engaged list, avoid cold bulk sends and test placement before a campaign. Above all, write to interested contacts: engagement is what protects your reputation most.

      How does Gojiberry help deliverability?+

      Gojiberry is an AI-powered, multi-channel prospecting platform. It tracks 30+ buying-intent signals across socials and the web, surfaces leads who are in-market right now, then triggers personalized outreach. By targeting interested contacts, you raise engagement and protect your sender reputation, the real driver of deliverability.

      A clean email is nice. The right recipient is better.

      Let Gojiberry spot your next customers while they're actively searching, and launch personalized outreach for you, every week.

      More High-Intent Leads = Your New Growth Engine.

      Start Now and Get New High Intent Leads Delivered Straight to Slack or Your Inbox.