Is your domain's email actually protected?
Check your SPF, DMARC, DKIM, and MX records in seconds. Free, instant, no signup required.
Know every system sending email from your domain
DMARC-powered sender inventory and change detection. Get alerted when something new appears or authentication breaks.
Sender Inventory
A living map of every system sending email from your domain, with volume and auth health.
Change Detection
Alerts when a sender appears, disappears, or authentication breaks.
Actionable Insights
What broke, the likely cause, and what to fix. Weekly “what changed” reports.