🌐DNS
1 A · 1 MX · 4 NS · 1 PTR · 1 SOA · 5 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 58d · 1 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗ (p=none)
💻Tech Stack
Email: Self-hosted
📡HTTP
4 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✗ · Nosniff ✓
🛡️Security
C (150/215) · 1 critical · 2 high
⚠️Threats
risk: medium · 1 recommendation(s)
📈Deliverability
A (79/90) · 1 MX · 1 IPs · 4 issue(s)
🔍Subdomains
2 found · 112 answered — mail, www