cbfr.de

Valid Email Server
Domain Lookup › cbfr.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cbfr.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-31 22:08:52 UTC · ↺ Refresh

MX Hostnames

  • mx01.kundenserver.de
  • mx00.kundenserver.de
  • mail.cbfr.de

MX Priorities

  • mail.cbfr.de: 10
  • mx00.kundenserver.de: 20
  • mx01.kundenserver.de: 21

A / AAAA Records

  • 52.59.120.70 ↩ eu-staticip2.multiscreensite.com
  • 18.197.248.23 ↩ eu-staticip.multiscreensite.com

Mail Server IPs

  • 78.94.226.197 ↩ mail.cbfr.de
  • 212.227.15.41 ↩ mx00.kundenserver.de
  • 217.72.192.67 ↩ mx01.kundenserver.de

SOA Record

Raw SOA ns1046.ui-dns.org hostmaster.1und1.de 2016042906 28800 7200 604800 300
Primary NS (mname)
ns1046.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2016042906
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1046.ui-dns.biz
ns1046.ui-dns.org
ns1046.ui-dns.de
ns1046.ui-dns.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.kundenserver.de mx -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.kundenserver.de mx -all
  • v=verifydomain MS=7684333
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