Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fzs.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 19:38:44 UTC · ↺ Refresh
MX Hostnames
- mx4.werk21system.de
- mx3.werk21system.de
MX Priorities
- mx3.werk21system.de: 10
- mx4.werk21system.de: 20
A / AAAA Records
- 193.96.188.221 (no PTR)
Mail Server IPs
- 91.216.245.166 ↩ mx3.werk21system.de
- 78.46.128.86 ↩ mx4.werk21system.de
SOA Record
Raw SOA
ns1.hosting.de hostmaster.fzs.de 2026022404 86400 7200 3600000 900
Primary NS (mname)
ns1.hosting.de
Admin Email (rname)
hostmaster@fzs.de
Serial
2026022404
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
900s
Nameservers (NS)
ns3.hosting.de
ns1.hosting.de
ns2.hosting.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:marx.fzs.de a:mx.werk21system.de ip4:78.46.59.169 ?all
📊 DNS lookups: 5/10
? Neutral (?all) — no 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
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx a:marx.fzs.de a:mx.werk21system.de ip4:78.46.59.169 ?all
- google-site-verification=godRKyWiy4OxKzPcbcjavTDYASDnQ-4_9DVqll9657I
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