klinikum-os.de

Valid Email Server
Domain Lookup › klinikum-os.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
klinikum-os.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 03:12:41 UTC · ↺ Refresh

MX Hostnames

  • mx-in01.eu.retarus.com
  • mx-in02.eu.retarus.com

MX Priorities

  • mx-in02.eu.retarus.com: 10
  • mx-in01.eu.retarus.com: 10

A / AAAA Records

  • 5.75.191.3 ↩ dedivirt3263.your-server.de
  • 2a01:4f8:1c1e:f1be::2 ↩ dedivirt3263.your-server.de

Mail Server IPs

  • 94.199.89.39 ↩ mx-in02.eu.retarus.com
  • 94.199.92.130 ↩ mx-in01.eu.retarus.com

SOA Record

Raw SOA ns1080.ui-dns.org hostmaster.1und1.com 2017060304 28800 7200 604800 600
Primary NS (mname)
ns1080.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060304
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1124.ui-dns.biz
ns1103.ui-dns.com
ns1084.ui-dns.de
ns1080.ui-dns.org

SPF Record

✓ Strict (-all)
v=spf1 a:dedivirt3263.your-server.de include:_spf.retarus.com include:spf.itebo.de include:spf.cluster.4hr.de -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)

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

7 records
  • google-site-verification=rzM3vEWdy_Uua3osbUt4Q398jbuhbEtUDFl6_VHyPlc
  • atlassian-sending-domain-verification=61ee49cd-c818-4c32-aaac-10221db4dabb
  • _1uq6a6etqgcjbxttkly14jgpsj9ja2q
  • apple-domain-verification=Pe9ml1DiAxH4AMK0
  • SPFv=spf1 a:dedivirt3263.your-server.de include:_spf.retarus.com include:spf.itebo.de include:spf.cluster.4hr.de -all
  • atlassian-domain-verification=sL2zzlhIkEc5lJKm7tcROmA6cC74/9wnWIqhYMZ99k66Uh9OS5V4E9b64g/bmfwx
  • intersight=f0e6f9a94431ad73afb2a92243b39a61551093dc2bf19436f353e4a78b1dad93
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