Email Security Checker
Review SPF, DKIM, and DMARC maturity with spoofing exposure and deliverability guidance.
Best for teams reviewing domain email posture, phishing-resistance maturity, vendor sending changes, or DMARC enforcement readiness.
What This Tool Checks
- SPF, DKIM, and DMARC maturity scoring
- Spoofing exposure indicators
- Deliverability and enforcement actions
Why It Matters
Email trust failures often show up first as spoofing exposure, weak enforcement, or DKIM/SPF drift. That affects both brand protection and deliverability.
Best For
Best for teams reviewing domain email posture, phishing-resistance maturity, vendor sending changes, or DMARC enforcement readiness.
What To Do Next
Use the findings to stabilize SPF and DKIM first, then tighten DMARC policy and retest until enforcement matches the real sender footprint.
Related Resources
What does the Email Security Checker look for?
Email Security Checker focuses on spf, dkim, and dmarc maturity scoring, spoofing exposure indicators, deliverability and enforcement actions. It is designed to help teams identify this category of weakness quickly and then move into broader workflows if deeper follow-up is needed.
What is the difference between Quick and Comprehensive mode?
Quick mode stays public for focused diagnostics. Comprehensive mode is intended for authenticated workflows where users need saved history, richer follow-up, and broader account-linked execution.
When should I use the full Vulnify platform instead?
Use the full platform when you need more than one focused diagnostic, want to keep reports and history, or need scheduled scans, exports, and broader vulnerability coverage beyond email security checker.