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Get a free email deliverability audit for your domain — inbox placement analysis, DMARC review, and blacklist check.
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Free Tool
Free Spam Trigger Checker
Paste your subject line or email body. We scan against 500+ spam trigger words used by Gmail, Outlook, and major spam filters and give you an instant deliverability score.
Paste your subject line or email content
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Score
Your text (highlighted triggers)
High-risk Medium-risk Low-risk
How to Improve Your Score
Remove ALL CAPS
Capitalising full words triggers spam filters in almost every email client.
Avoid urgency phrases
Words like "Act now", "Limited time", "Expires today" are heavily weighted.
No excessive punctuation
Multiple exclamation marks (!!!) or question marks flag filters automatically.
Watch financial words
Free, discount, earn, cash, winner — use sparingly and in natural context.
Personalise subject lines
Personalised subjects using first names score 40% better than generic ones.
Also test with Migomail
Migomail includes built-in spam testing with inbox preview across Gmail, Outlook, and Apple Mail before you send.
