Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rbz-steinburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 14:57:41 UTC · ↺ Refresh
MX Hostnames
- mail.rbz-steinburg.de
MX Priorities
- mail.rbz-steinburg.de: 10
A / AAAA Records
- 144.76.118.226 ↩ brockshus.top
Mail Server IPs
- 94.130.168.52 ↩ mail.rbz-steinburg.de
SOA Record
Raw SOA
a.ns14.net do-not-reply.rbz-steinburg.de 2026010801 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
do-not-reply@rbz-steinburg.de
Serial
2026010801
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
a.ns14.net
b.ns14.net
c.ns14.net
d.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 +a +mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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
3 records- MS=B59588AF840C7F613EA64C2142970CADEA392644
- apple-domain-verification=UxHeZxBIb20YfEZC
- SPFv=spf1 +a +mx -all
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