hs-duesseldorf.de

Valid Email Server
Domain Lookup › hs-duesseldorf.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hs-duesseldorf.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 12:31:05 UTC · ↺ Refresh

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MX Hostnames

  • hsduesseldorf-de0e.mail.protection.outlook.com

MX Priorities

  • hsduesseldorf-de0e.mail.protection.outlook.com: 10

A / AAAA Records

  • 193.23.170.220 ↩ lust.hs-duesseldorf.de

Mail Server IPs

  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com

SOA Record

Raw SOA zdns01.hs-duesseldorf.de netzwerkcit.hs-duesseldorf.de 535812814 10000 3600 604800 10800
Primary NS (mname)
zdns01.hs-duesseldorf.de
Admin Email (rname)
netzwerkcit@hs-duesseldorf.de
Serial
535812814
Refresh
10000s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

selene.rz.uni-duesseldorf.de
sirene.rz.uni-duesseldorf.de
zdns02.hs-duesseldorf.de
zdns01.hs-duesseldorf.de
deneb.dfn.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.rexx-suite.com include:listen.hbz-nrw.de ip4:195.37.236.130 ip4:195.37.236.131 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;rua=mailto:[email protected];pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

8 records
  • teamviewer-sso-verification=fddf2f40174c4698bdc2c6b1ce1ce78b
  • MS=ms43826006
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.rexx-suite.com include:listen.hbz-nrw.de ip4:195.37.236.130 ip4:195.37.236.131 -all
  • google-site-verification=x2sUdGuO0GjBs7Oa6RGX_k6elAwlUK1UZf6-r9hl8Z8
  • apple-domain-verification=wxFcljEJFvz95KeD
  • google-site-verification=munv4Jve7c-lbMfXe1p9lhOOD14FiYNAyC46nvYtTjE
  • _7r4d77d2zz9el7f0cd37dtjcloml96v
  • HARICA-9q3mWdoKj9j96gUSx1J
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