d-nb.de

Valid Email Server
Domain Lookup › d-nb.de

Domain Overview

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

Checked via [email protected] · 2026-03-26 04:40:19 UTC · ↺ Refresh

MX Hostnames

  • mail.dnb.de

MX Priorities

  • mail.dnb.de: 10

A / AAAA Records

  • 193.175.100.220 ↩ sinnvolles-schaffen

Mail Server IPs

  • 193.175.100.144 ↩ prodfix-out0.dnb.de

SOA Record

Raw SOA ns.dnb.de hostmaster.dnb.de 2022102500 3600 14400 2419200 3600
Primary NS (mname)
ns.dnb.de
Admin Email (rname)
hostmaster@dnb.de
Serial
2022102500
Refresh
3600s
Retry
14400s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

dns-1.dfn.de
ns0.dnb.de
ns1.dnb.de

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

No TXT records found.

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