InboxGuard

Email Spam Checker (Free Tool)

Check if your email will land in spam before sending. Detect spam triggers instantly.

Most emails fail not because of content quality, but because of hidden spam triggers, poor structure, and domain issues.

Paste your email (Ctrl + V)

Most emails fail silently. Check before you send.

Paste mode analyzes your raw email only.

Takes 5 seconds. No setup needed.

No signup required • No data stored

Why emails go to spam

Emails land in spam due to multiple factors like spam trigger words, missing authentication, bad formatting, and domain reputation issues.

How to check before sending

Paste your email above and analyze it before sending. Tools like InboxGuard help detect spam signals and improve deliverability.

Common spam triggers

  • FREE, GUARANTEED, ACT NOW
  • Too many links
  • Broken formatting

Fix your email before sending

Always test your email before sending to improve inbox placement and avoid spam filters.