dkfz.de

Valid Email Server
Domain Lookup › dkfz.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
dkfz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-02 16:38:18 UTC · ↺ Refresh

MX Hostnames

  • b1202.mx.srv.dfn.de
  • c1202.mx.srv.dfn.de
  • a1202.mx.srv.dfn.de

MX Priorities

  • b1202.mx.srv.dfn.de: 10
  • c1202.mx.srv.dfn.de: 10
  • a1202.mx.srv.dfn.de: 10

A / AAAA Records

  • 192.54.49.124 ↩ www100.inet.dkfz-heidelberg.de

Mail Server IPs

  • 194.95.235.71 ↩ b1202.mx.srv.dfn.de
  • 2001:638:d:c302:acdc:1979:2:ff ↩ b1202.mx.srv.dfn.de
  • 194.95.239.71 ↩ c1202.mx.srv.dfn.de
  • 2001:638:d:c303:acdc:1979:2:ff ↩ c1202.mx.srv.dfn.de
  • 194.95.233.71 ↩ a1202.mx.srv.dfn.de
  • 2001:638:d:c301:acdc:1979:2:ff ↩ a1202.mx.srv.dfn.de

SOA Record

Raw SOA ns-ext.inet.dkfz-heidelberg.de hostmaster.dkfz-heidelberg.de 2026033101 10800 1800 3600000 300
Primary NS (mname)
ns-ext.inet.dkfz-heidelberg.de
Admin Email (rname)
hostmaster@dkfz-heidelberg.de
Serial
2026033101
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
300s

Nameservers (NS)

ns-ext.inet.dkfz-heidelberg.de
dns1.belwue.de
dns3.belwue.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:dkfz-heidelberg.de include:_spf.zimpel.de mx ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;sp=none;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected]
⚠ 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

4 records
  • SPFv=spf1 include:dkfz-heidelberg.de include:_spf.zimpel.de mx ~all
  • MS=ms38669278
  • HARICA-fPqKQiHjbRwhMoPvx7o
  • apple-domain-verification=tEscpfYrUcZpSNtc
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