Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zdi-hsk.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 04:48:56 UTC · ↺ Refresh
MX Hostnames
- mail.zdi-hsk.de
MX Priorities
- mail.zdi-hsk.de: 10
A / AAAA Records
- 83.171.239.207 ↩ 550.cluster-nbg1.de
- 2a05:8b81:1000:2::15fa:4760 ↩ 550.cluster-nbg1.de
Mail Server IPs
- 83.171.239.207 ↩ 550.cluster-nbg1.de
- 2a05:8b81:1000:2::15fa:4760 ↩ 550.cluster-nbg1.de
SOA Record
Raw SOA
ns2.550.cluster-nbg1.de plesk.cluster-nbg1.de 2026031001 10800 3600 1209600 10800
Primary NS (mname)
ns2.550.cluster-nbg1.de
Admin Email (rname)
plesk@cluster-nbg1.de
Serial
2026031001
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns2.550.cluster-nbg1.de
ns1.550.cluster-nbg1.de
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +a:550.cluster-nbg1.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- brevo-code:6a3997045bfd38de0a6e3589a1b80b50
- SPFv=spf1 +a +mx +a:550.cluster-nbg1.de -all
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