Free email security check

Is your domain
safe from spoofing?

Check DMARC, SPF, DKIM and get an instant security score — no account needed.

What gets checked
DMARC policy
Is your domain protected against email spoofing? At what enforcement level?
SPF record
Is SPF present and within the 10-lookup limit that prevents delivery failures?
DKIM signing
Are DKIM keys published so receivers can verify your email wasn't tampered with?
Overall security score
0–100 score and A–F grade summarising your email security posture at a glance.

DMARC report ingestion

Point your RUA address at argus0 and get parsed, actionable reports — not raw XML.

Spoofing incident alerts

Get notified the moment someone starts sending email in your name — before your reputation takes the hit.

One-click DNS fixes

Connect Cloudflare and fix broken DMARC or SPF records directly from the dashboard — with full rollback.