seybold-dueren.de

Valid Email Server
Domain Lookup › seybold-dueren.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
seybold-dueren.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 08:51:38 UTC · ↺ Refresh

MX Hostnames

  • seybolddueren-de01i.mail.protection.outlook.com

MX Priorities

  • seybolddueren-de01i.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.48 ↩ 217-160-0-48.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::281 ↩ 2001-08d8-100f-f000-0000-0000-0000-0281.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com

SOA Record

Raw SOA ns1023.ui-dns.org hostmaster.1und1.de 2017061241 28800 7200 604800 300
Primary NS (mname)
ns1023.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2017061241
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1023.ui-dns.biz
ns1023.ui-dns.com
ns1023.ui-dns.de
ns1023.ui-dns.org

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

2 records
  • v=verifydomain MS=6339751
  • SPFv=spf1 include:spf.protection.outlook.com ~all
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