helmholtz-berlin.de

Valid Email Server
Domain Lookup › helmholtz-berlin.de

Domain Overview

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

Checked via [email protected] · 2026-03-27 11:18:12 UTC · ↺ Refresh

MX Hostnames

  • a1391.mx.srv.dfn.de
  • b1391.mx.srv.dfn.de
  • c1391.mx.srv.dfn.de

MX Priorities

  • c1391.mx.srv.dfn.de: 10
  • a1391.mx.srv.dfn.de: 10
  • b1391.mx.srv.dfn.de: 10

A / AAAA Records

  • 134.30.15.146 ↩ www.helmholtz-berlin.de

Mail Server IPs

  • 194.95.238.76 ↩ c1391.mx.srv.dfn.de
  • 194.95.232.76 ↩ a1391.mx.srv.dfn.de
  • 194.95.234.76 ↩ b1391.mx.srv.dfn.de

SOA Record

Raw SOA dns.helmholtz-berlin.de dnsmaster.helmholtz-berlin.de 2026032401 14400 1800 1209600 43200
Primary NS (mname)
dns.helmholtz-berlin.de
Admin Email (rname)
dnsmaster@helmholtz-berlin.de
Serial
2026032401
Refresh
14400s
Retry
1800s
Expire
1209600s
Minimum TTL
43200s

Nameservers (NS)

dns-w.helmholtz-berlin.de
dns-3.dfn.de
dns.helmholtz-berlin.de

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:134.30.18.147 ip4:134.30.18.148 include:spf.de.umantis.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; adkim=r; aspf=r; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ 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

7 records
  • Hahn-Meitner-Platz 1
  • 14109 Berlin
  • MS=2EE2153337D71A025E16A6A7A0D3B2F8C78F8B6A
  • openai-domain-verification=dv-8EQmqslGvrjiKqMkT0XAuUfY
  • Helmholtz-Zentrum Berlin
  • cisco-ci-domain-verification=4c7fe339fd02798a111def11878ecdd6b8036848de693183b6dce52ba7b42e28
  • SPFv=spf1 ip4:134.30.18.147 ip4:134.30.18.148 include:spf.de.umantis.com ~all
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