Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gut-cert.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 00:49:45 UTC · ↺ Refresh
MX Hostnames
- mail.gut-cert.de
- mail2.gut-cert.de
MX Priorities
- mail.gut-cert.de: 200
- mail2.gut-cert.de: 500
A / AAAA Records
- 94.130.212.77 ↩ tau.bluepepper.de
Mail Server IPs
- 62.96.223.92 ↩ mail.gut-cert.de
- 78.47.172.8 ↩ mail2.gut-cert.de
SOA Record
Raw SOA
alina.ns.cloudflare.com dns.cloudflare.com 2400441434 10000 2400 604800 1800
Primary NS (mname)
alina.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400441434
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
melnicoff.ns.cloudflare.com
alina.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:136.243.147.200 ip4:62.96.223.92/32 ip4:85.214.83.145 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1; adkim=r; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms40504868
- SPFv=spf1 a mx ip4:136.243.147.200 ip4:62.96.223.92/32 ip4:85.214.83.145 include:spf.protection.outlook.com -all
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