cuxhaven.de

Valid Email Server
Domain Lookup › cuxhaven.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cuxhaven.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 18:15:31 UTC · ↺ Refresh

MX Hostnames

  • mail.cuxhaven.de

MX Priorities

  • mail.cuxhaven.de: 10

A / AAAA Records

  • 5.159.58.206 (no PTR)
  • 5.159.62.244 ↩ toshi.marktplatz.io
  • 2a04:79c0::401:0:0:0:4 (no PTR)
  • 2a04:79c0:1010:5002::6 (no PTR)

Mail Server IPs

  • 80.228.30.121 ↩ mail.cuxhaven.de

SOA Record

Raw SOA cns1.alfahosting.info hostmaster.alfahosting.de 2026012170 28800 7200 604800 60
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
hostmaster@alfahosting.de
Serial
2026012170
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
60s

Nameservers (NS)

cns3.alfahosting.info
cns1.alfahosting.info
cns2.alfahosting.info

SPF Record

✓ Strict (-all)
v=spf1 mx include:_spf.nol-is.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]!5m; ruf=mailto:[email protected]!5m; sp=none; rf=afrf; ri=86400; adkim=r; aspf=r; fo=0:1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!5m
↳ Subdomain policy: none

DKIM Selectors

✗ None detected

No 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

1 record
  • SPFv=spf1 mx include:_spf.nol-is.de -all
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