hennecke-buero.de

Valid Email Server
Domain Lookup › hennecke-buero.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hennecke-buero.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 19:51:14 UTC · ↺ Refresh

MX Hostnames

  • mx01.kundenserver.de
  • henneckebuero-de02b.mail.protection.outlook.com
  • mx00.kundenserver.de

MX Priorities

  • mx00.kundenserver.de: 20
  • henneckebuero-de02b.mail.protection.outlook.com: 0
  • mx01.kundenserver.de: 21

A / AAAA Records

  • 217.160.0.91
  • 2001:8d8:100f:f000::21a

Mail Server IPs

  • 212.227.15.41 ↩ mx00.kundenserver.de
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
  • 217.72.192.67 ↩ mx01.kundenserver.de

SOA Record

Raw SOA ns1100.ui-dns.com hostmaster.1und1.de 2016110466 28800 7200 604800 300
Primary NS (mname)
ns1100.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2016110466
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1100.ui-dns.de
ns1100.ui-dns.org
ns1100.ui-dns.com
ns1100.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms46328904
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