duesseldorf.de

Valid Email Server
Domain Lookup › duesseldorf.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
duesseldorf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 21:15:19 UTC · ↺ Refresh

MX Hostnames

  • mail32.itk-rheinland.de
  • mail52.itk-rheinland.de
  • mail42.itk-rheinland.de

MX Priorities

  • mail52.itk-rheinland.de: 10
  • mail32.itk-rheinland.de: 10
  • mail42.itk-rheinland.de: 10

A / AAAA Records

  • 193.27.22.39 ↩ duesseldorf.de

Mail Server IPs

  • 193.27.22.121 ↩ mail52.itk-rheinland.de
  • 193.27.22.98 ↩ mail32.itk-rheinland.de
  • 193.27.22.115 ↩ mail42.itk-rheinland.de

SOA Record

Raw SOA ns.itk-rheinland.de postmaster.duesseldorf.de 2970831915 10800 1800 1209600 43200
Primary NS (mname)
ns.itk-rheinland.de
Admin Email (rname)
postmaster@duesseldorf.de
Serial
2970831915
Refresh
10800s
Retry
1800s
Expire
1209600s
Minimum TTL
43200s

Nameservers (NS)

ns2nd.itk-rheinland.de
secondary006.dtag.net
ns.itk-rheinland.de
pns.dtag.de

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:193.27.22.88 include:_spf.rexx-suite.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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
  • duo_sso_verification=czynCNZY0ovlVO3RPTiG7JiC6n7vhsENRiJj6MgjBYNa5PWPs9EdNM2yPiojoNB4
  • QuoVadis=759f41f9-090e-48ff-9994-747c8be8ef3b
  • _telesec-domain-validation=355711_2026-02-17_HOBZSv0WZCjaQTJR4gu9vECFLZaL4swbj2sTW44ZsbWZTlQOKq
  • adobe-idp-site-verification=eac65759811f2b1acc9701456fdef56dc0b95bdb81d03d0f4c9e73d353f6efc6
  • hibp-verify=dweb_obg9bbvpqdxzouvngiwn4hb1
  • google-site-verification=H3C7cO-eVuY249hCd_vjCugwMnKD98oAdgYOnoiMGVw
  • D-TRUST=YUOXH2KLMVGU6BBYFW7EQJP
  • SPFv=spf1 ip4:193.27.22.88 include:_spf.rexx-suite.com ~all
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