Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mars-quickborn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 16:18:17 UTC · ↺ Refresh
MX Hostnames
- mx1.fizon.de
MX Priorities
- mx1.fizon.de: 10
A / AAAA Records
- 81.18.101.90 ↩ rpweb1.kunden.fz.matthies.de
Mail Server IPs
- 195.149.99.197 ↩ mx2.fizon.de
- 2a02:21e0:16e0:fe::102:9 ↩ mx2.fizon.de
SOA Record
Raw SOA
ns1.fizon.de ns.fizon.de 1620039670 43200 7200 1209600 86400
Primary NS (mname)
ns1.fizon.de
Admin Email (rname)
ns@fizon.de
Serial
1620039670
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns5.fizon.de
ns4.fizon.de
ns2.fizon.de
ns1.fizon.de
SPF Record
✓ Strict (-all)
v=spf1 mx a include:spf.fizon.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; ruf=mailto:[email protected]; rua=mailto:[email protected]; sp=quarantine; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 1 found
default._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
1 record- SPFv=spf1 mx a include:spf.fizon.de -all
Full email verification for mars-quickborn.de
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