Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nbg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 09:07:24 UTC · ↺ Refresh
MX Hostnames
- mx3.osn.de
- mx5.osn.de
- mx4.osn.de
- mx2.osn.de
- mx1.osn.de
MX Priorities
- mx4.osn.de: 40
- mx5.osn.de: 5
- mx1.osn.de: 10
- mx2.osn.de: 20
- mx3.osn.de: 30
A / AAAA Records
- 194.45.27.133 ↩ web02.osn.de
Mail Server IPs
- 140.82.36.222 ↩ mx04.osn.de
- 194.45.27.123 ↩ mx01.osn.de
- 194.45.27.124 ↩ mx02.osn.de
- 213.241.148.44 ↩ mx03.osn.de
SOA Record
Raw SOA
dns.osn.de root.osn.de 1771493460 14400 3600 1209600 86400
Primary NS (mname)
dns.osn.de
Admin Email (rname)
root@osn.de
Serial
1771493460
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns.osn.net
dns.osn.org
dns.osn.de
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:193.17.21.0/25 include:osn.de ?all
📊 DNS lookups: 1/10
? Neutral (?all) — no enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
1 record- SPFv=spf1 ip4:193.17.21.0/25 include:osn.de ?all
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