Email Spam Checker (Free)

Quick answer: An email spam checker scans your subject line and body for the words, formatting and patterns that trip spam filters — things like “free”, “act now”, ALL CAPS, excessive punctuation and too many links. Paste your email below to get a deliverability score and a list of what to fix.

Email spam-word checker

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Even a clean email needs a clean sender reputation. Bluey Email includes deliverability tooling and authentication on every plan. See the features.

How the spam score works

Spam filters weigh content signals alongside your sender reputation and authentication. This checker focuses on the content half: it flags spam-trigger words (money and urgency language), ALL CAPS words, excessive punctuation (like “!!!”), and too many links relative to text. Fixing these lowers your risk, but real inbox placement also depends on SPF, DKIM, DMARC and list hygiene — so treat the score as a content guide, not a guarantee.

Frequently asked questions

What words trigger spam filters?Money and pressure phrases such as “free”, “act now”, “guarantee”, “risk-free”, “cash bonus” and “100%”, plus ALL CAPS and lots of exclamation marks. Use them sparingly and in context.
Does a good score guarantee inbox placement?No. Content is only part of it. SPF/DKIM/DMARC authentication, sender reputation, engagement and list hygiene matter at least as much.
How many links are too many?There is no hard rule, but a wall of links with little text looks promotional. Keep a healthy text-to-link ratio and avoid link shorteners.
Is this tool free?Yes — free and private. Your email is analysed in your browser and never sent anywhere.

Keep exploring

Related reading: Email Deliverability Guide (2026): How to Actually Reach the Inbox·SPF, DKIM & DMARC Explained (Plain-English 2026 Guide)