klinknetz.de

Valid Email Server
Domain Lookup › klinknetz.de

Domain Overview

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

Checked via [email protected] · 2026-04-01 16:02:13 UTC · ↺ Refresh

MX Hostnames

  • mxext2.mailbox.org
  • mxext1.mailbox.org
  • mxext3.mailbox.org

MX Priorities

  • mxext3.mailbox.org: 20
  • mxext2.mailbox.org: 10
  • mxext1.mailbox.org: 10

A / AAAA Records

  • 5.45.97.54 ↩ mx01.mail.klinknetz.de
  • 2a03:4000:5:24c::443 ↩ klinknetz.de

Mail Server IPs

  • 80.241.60.216 ↩ mx3.mailbox.org
  • 2001:67c:2050:104::3:25:1 ↩ mx3.mailbox.org
  • 80.241.60.215 ↩ mx2.mailbox.org
  • 2001:67c:2050:104::2:25:1 ↩ mx2.mailbox.org
  • 80.241.60.212 ↩ mx1.mailbox.org
  • 2001:67c:2050:104::1:25:1 ↩ mx1.mailbox.org

SOA Record

Raw SOA ns1.core-networks.de hostmaster.core-networks.de 2024117482 28800 7200 604800 86400
Primary NS (mname)
ns1.core-networks.de
Admin Email (rname)
hostmaster@core-networks.de
Serial
2024117482
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns1.core-networks.de
ns3.core-networks.com
ns2.core-networks.eu

SPF Record

✓ Soft Fail (~all)
v=spf1 +mx include:mailbox.org ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=0; adkim=s; aspf=s; rf=afrf; sp=quarantine
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

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

4 records
  • hibp-verify=dweb_q1siatwbl75ccqnqhy6nriy3
  • SPFv=spf1 +mx include:mailbox.org ~all
  • h0d221231ced4446e90d2dc97897253d1
  • google-site-verification=x_T9qPKAtyRT1GNuYTJWXG0N4nefTW81X5jNfWgQP7A
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