shield InboxGuard
Real-time spam analysis

Know if your email will reach the inbox before you hit send

Paste your email. Get a spam risk score in 5 seconds. Catch every issue before it hurts your sender reputation.

✓ No account required for your first scan
✓ Results in under 5 seconds
✓ Works with any email — cold outreach, newsletters, proposals

document_scanner Quick Scan

✓ Spam Risk Score · ✓ SPF/DKIM/DMARC · ✓ Rewrite Suggestions · ✓ Deliverability Analysis

🔒 Private & Secure — We never store your email content

113+
Emails scanned
4
Countries
5 sec
Average scan time

Deliverability infrastructure simplified

Identify and fix critical issues before they impact your sender reputation.

fact_check

Spam Detection

Scan subject lines and body copy for trigger words, excessive capitalization, spam phrases, and link density...

security

Authentication Check

Instantly verify your SPF, DKIM, and DMARC records. Find out if your domain is on any blacklist...

build

Rewrite Suggestions

Get a clean rewritten version of your email with every flagged phrase replaced. Copy it in one click.

What your results look like

Here's a real example of what InboxGuard catches

67/100

High Spam Risk

We found 3 critical issues that will likely send this to the promo or spam folder.

Issues Found

  • High "Free" used 4 times
  • High ALL CAPS in subject line
  • Medium 3 tracking links detected

Suggested Rewrite

"Hi there, I wanted to share an update on our new pricing model..."