duerkop.de

Valid Email Server
Domain Lookup › duerkop.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
duerkop.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-21 11:11:32 UTC · ↺ Refresh

MX Hostnames

  • duerkop-de.mail.protection.outlook.com

MX Priorities

  • duerkop-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 80.83.122.250 ↩ symlink01.virtualhosts.de

Mail Server IPs

  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1037.ui-dns.org hostmaster.1and1.com 2017080877 28800 7200 604800 300
Primary NS (mname)
ns1037.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2017080877
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1037.ui-dns.org
ns1037.ui-dns.biz
ns1037.ui-dns.com
ns1037.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 mx a:mail.dello.de ip4:93.90.134.31 ip4:93.90.128.0/20 include:spf.mlwrx.com include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;adkim=s;aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)

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

3 records
  • knowbe4-site-verification=94aaab6733fdf5c66339bfb0d11e9939
  • apple-domain-verification=mm4p7CIbmecAUK62
  • SPFv=spf1 mx a:mail.dello.de ip4:93.90.134.31 ip4:93.90.128.0/20 include:spf.mlwrx.com include:spf.protection.outlook.com include:spf.eu.exclaimer.net -all
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