Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
peter-bruckmann-schule.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 23:37:17 UTC · ↺ Refresh
MX Hostnames
- owa.pbs-hn.de
MX Priorities
- owa.pbs-hn.de: 10
A / AAAA Records
- 193.53.246.239 ↩ r30206.agenturserver.it
Mail Server IPs
- 129.143.125.147 ↩ defendo.pbs-hn.de
SOA Record
Raw SOA
ns1084.ui-dns.org hostmaster.1und1.com 2017060110 28800 7200 604800 600
Primary NS (mname)
ns1084.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060110
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1097.ui-dns.biz
ns1052.ui-dns.de
ns1084.ui-dns.org
ns1078.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.belwue.de -all
📊 DNS lookups: 1/10
✓ 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
1 record- SPFv=spf1 include:_spf.belwue.de -all
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