cluster6000.de

Valid Email Server
Domain Lookup › cluster6000.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cluster6000.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 09:50:06 UTC · ↺ Refresh

MX Hostnames

  • w012f1f4.kasserver.com

MX Priorities

  • w012f1f4.kasserver.com: 10

A / AAAA Records

  • 85.13.134.23 ↩ dd11638.kasserver.com

Mail Server IPs

  • 85.13.134.23 ↩ dd11638.kasserver.com

SOA Record

Raw SOA ns5.kasserver.com hostmaster.kasserver.com 2602181232 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2602181232
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

ns5.kasserver.com
ns3.kas-dns-server.de
ns6.kasserver.com
a-dns-service.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:spf.kasserver.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

3 records
  • SPFv=spf1 a mx include:spf.kasserver.com ~all
  • MS=819F9A40D8B8B4DD62C6382C03E80BA76B0127EE
  • MS=ms37168586
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