Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
helmholtz-hzi.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 11:26:32 UTC · ↺ Refresh
MX Hostnames
- fm.helmholtz-hzi.de
MX Priorities
- fm.helmholtz-hzi.de: 5
A / AAAA Records
- 46.20.39.93 ↩ helmholtz-web-prod.mobilistics.zone
Mail Server IPs
- 193.175.244.6 (no PTR)
SOA Record
Raw SOA
dns01.helmholtz-hzi.de hostmaster.helmholtz-hzi.de 2026032301 3600 1800 604800 600
Primary NS (mname)
dns01.helmholtz-hzi.de
Admin Email (rname)
hostmaster@helmholtz-hzi.de
Serial
2026032301
Refresh
3600s
Retry
1800s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
dns01.helmholtz-hzi.de
dns-2.dfn.de
dns-1.dfn.de
SPF Record
✓ Strict (-all)
v=spf1 ip6:2001:638:612:1::181 ip6:2001:638:612:1::180 ip6:2a01:488:42:1000:b24d:6f5b:: ip4:193.175.244.0/24 ip4:134.0.25.89 ip4:185.113.42.95 ip4:178.77.111.91 ip4:159.69.102.144 ip4:80.67.29.31 ip4:46.20.39.93 a:smtp.uni-saarland.de a:fias.uni-frankfurt.de include:_spf-e.cegedim.fr include:_spf-i.cegedim.fr include:_spf.o164.mx.srv.dfn.de include:_spf-dc55.sapsf.eu include:spf.mailsupport.dfn.de -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; adkim=s; aspf=s ;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
mail._domainkey
s1._domainkey
✓ Public key: 736 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- _telesec-domain-validation=353671_2025-10-20_rKMDBMjQZrkDHyqSLcXEYVxo4wcjy3JnC9gPKhHIEV35lckmHG
- _telesec-domain-validation=2023-10-10_faRRtxM8WSJOGtBqT9nmkvilekVIKQogBfvVsHm0R6vYJdPJoj
- successfactors-site-verification=ZmM4NTcwNTkzMjRiNTIwNWM0NzAyOTg0MGMyZmUyZmRmODJkZTUyYmMxNTUxYmQzMDk0YTEwNGY5NDNlNzk2Yw==
- _telesec-domain-validation=340845_2024-11-21_SPlRGaWFs7Khq4CSwNl5ncGnEpBqnT9o7QZ4yMhBp5Y00hXSRp
- HARICA-L77GU2M8NHBrn5cPALz
- _telesec-domain-validation=2023-10-10_TYsUktWb6lMYFteKmMYhwuXpSByYUfVhdFdCiAc9caxCIJTdk2
- SPFv=spf1 ip6:2001:638:612:1::181 ip6:2001:638:612:1::180 ip6:2a01:488:42:1000:b24d:6f5b:: ip4:193.175.244.0/24 ip4:134.0.25.89 ip4:185.113.42.95 ip4:178.77.111.91 ip4:159.69.102.144 ip4:80.67.29.31 ip4:46.20.39.93 a:smtp.uni-saarland.de a:fias.uni-frankfurt.de include:_spf-e.cegedim.fr include:_spf-i.cegedim.fr include:_spf.o164.mx.srv.dfn.de include:_spf-dc55.sapsf.eu include:spf.mailsupport.dfn.de -all
- Khk0pl6vtW+47aSRhtgcGK84OOAYoHUY8HuOtpOXCv0bhnc+zh3Vu9B5XXVP+jAG6fwX+9zJIC2/A+MqLFe/og==
- adobe-idp-site-verification=31d7093bbbac0254bf74ca889834cac08fe40c675b6c23b92b2f116f902ae9da
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