Free Email Security Test
Verify your email domain security configuration.
Test SPF, DKIM, and DMARC records to protect against email spoofing.
- SPF record check
- DKIM validation
- DMARC policy check
"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."
Sarah Chen
Head of Security
"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."
Marcus Anderson
CTO
"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."
Oskar Nilsson
Tech Lead
Scan in three simple steps
Fast, safe, non-intrusive checks with actionable results.
Start scan
Enter your URL, and click the start scan button to begin.
Scan runs
Barrion performs passive, read-only security checks with minimal site impact.
View results
See security findings with prioritized, actionable recommendations.
What is email domain security?
Email authentication relies on DNS records that tell receiving servers which hosts can send on your behalf (SPF), how to verify message integrity (DKIM), and what to do with failures (DMARC). A solid setup dramatically reduces spoofing and improves deliverability.
What this test checks
- SPF: record presence, syntax, includes, and DNS lookup count
- DKIM: selector discovery, key length hints, alignment notes
- DMARC: policy (none/quarantine/reject), alignment, rua/ruf reporting
How to fix common issues
- Keep SPF under 10 DNS lookups (flatten or consolidate providers)
- Rotate DKIM keys and use at least 2048‑bit where supported
- Move DMARC from p=none to quarantine/reject once aligned and monitored
Examples (good vs bad)
Good SPF: v=spf1 include:spf.provider.com -all
Bad SPF: v=spf1 a mx ip4:0.0.0.0/0 ~all
Tool-specific questions
Should DMARC be p=none?
How many DKIM selectors?
What breaks SPF?
Why Choose Barrion?
Real-Time Results
Instant security analysis with detailed reports, giving you an immediate security overview
Comprehensive Checks
Multiple best-practice security checks in a single scan, for broad coverage
Actionable and Effective
Clear recommendations for fixes, helping you improve your security quickly and effectively
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