🌐DNS
1 A · 1 MX · 3 NS · 1 SOA · 15 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 44d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✓ (p=reject)
🔐DNSSEC
signed · valid chain of trust
💻Tech Stack
Host: Microsoft Azure · Email: Self-hosted · nginx
📡HTTP
1 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
🛡️Security
B (155/215) · 1 critical · 2 high
📈Deliverability
A (85/100) · 1 MX · 3 IPs · 4 issue(s)
🔍Subdomains
6 found · 112 answered — autodiscover, exchange, media, outlook, smtp, www