Free tool
Free Email Spam Checker
Paste your email below and get an instant spam score, the exact trigger words hurting your deliverability, and concrete fixes. It runs entirely in your browser - nothing is uploaded.
How it works
Spam filters score every message before your reader ever sees it. They look at trigger words ("free", "guarantee", "act now"), excessive punctuation and capitals, link-to-text ratio, and a handful of other signals. A high score sends you to the junk folder no matter how good the offer is.
This checker scans your subject and body for the most common deliverability killers and gives you a 0-100 score (lower is better), the specific words and patterns it flagged, and what to change. Use it on cold outreach, newsletters, and important replies before you hit send.
It is a lightweight version of the spam scoring AutoEmail runs on every AI-drafted reply automatically - so your real email is checked before it ever sends.