tu-berlin.de

Valid Email Server
Domain Lookup › tu-berlin.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tu-berlin.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 11:07:13 UTC · ↺ Refresh

MX Hostnames

  • a1861.mx.srv.dfn.de
  • c1861.mx.srv.dfn.de
  • b1861.mx.srv.dfn.de

MX Priorities

  • a1861.mx.srv.dfn.de: 10
  • c1861.mx.srv.dfn.de: 10
  • b1861.mx.srv.dfn.de: 10

A / AAAA Records

  • 10.150.7.69 (no PTR)
  • 172.31.25.70 (no PTR)
  • 10.150.7.70 (no PTR)
  • 10.150.7.68 (no PTR)
  • 10.150.7.67 (no PTR)

Mail Server IPs

  • 194.95.232.130 ↩ a1861.mx.srv.dfn.de
  • 194.95.238.130 ↩ c1861.mx.srv.dfn.de
  • 194.95.234.130 ↩ b1861.mx.srv.dfn.de

SOA Record

Raw SOA ns.tu-berlin.de noc.tubit.tu-berlin.de 3150897218 21600 3600 2592000 900
Primary NS (mname)
ns.tu-berlin.de
Admin Email (rname)
noc@tubit.tu-berlin.de
Serial
3150897218
Refresh
21600s
Retry
3600s
Expire
2592000s
Minimum TTL
900s

Nameservers (NS)

dns-3.dfn.de
ns.tu-berlin.de
dns-2.dfn.de

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:130.149.7.33/32 ip4:130.149.7.70/32 ip4:141.23.12.141/32 ip4:141.23.12.142/32 ip4:141.23.12.143/32 ip4:194.95.233.66/32 ip4:194.95.235.66/32 ip4:194.95.239.66/32 ~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;pct=100;rua=mailto:[email protected];rf=afrf;ruf=mailto:[email protected];fo=1;ri=86400;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

✗ 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

8 records
  • google-site-verification=kSmcFhy-wb4tugh9q4ixU8FB7Nf_9olms3FAOMvvneA
  • HARICA-BseuKBWWHWXBzDHLFk5
  • SPFv=spf1 ip4:130.149.7.33/32 ip4:130.149.7.70/32 ip4:141.23.12.141/32 ip4:141.23.12.142/32 ip4:141.23.12.143/32 ip4:194.95.233.66/32 ip4:194.95.235.66/32 ip4:194.95.239.66/32 ~all
  • ZOOM_verify_IKGVguF2STCWu8Sd23Zv5A
  • google-site-verification=-jwn3NtjIFcWjGY4Iz1yrHpRRKUHnqOKn_uXdSSkFBE
  • HARICA-fNaB7lRk2C3ESEfeoMR
  • facebook-domain-verification=uwj0p8p6y8d8nghw46irrznjv5m1sy
  • cisco-ci-domain-verification=5914feda0494aa6850656aa987cbb519e67e24e4adc62372fb11ce5a716fad6f
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