Email Security Checker

Is this domain protected against someone else sending email that pretends to be from it? A combined SPF, DKIM readiness, DMARC and MX assessment.

About this tool

Spoofing — sending mail that falsely claims to be from your domain — is specifically what SPF, DKIM, and DMARC together defend against. This tool checks SPF and DMARC automatically (both are discoverable from the domain alone) and MX as a baseline sanity check, giving a focused view on anti-spoofing posture specifically. For deliverability more broadly (does mail actually land in the inbox), see Email Deliverability Checker; for a complete overview of everything, see Email Health Checker.

Related tools:

MX Checker SPF Checker DKIM Checker DMARC Checker Email Health Checker Email Deliverability Checker Email Blacklist Checker