Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gsz-zak.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 07:43:34 UTC · ↺ Refresh
MX Hostnames
- server.gsz-zak.de
MX Priorities
- server.gsz-zak.de: 20
A / AAAA Records
- 81.169.145.78 ↩ w0e.rzone.de
- 2a01:238:20a:202:1078:: ↩ w0e.rzone.de
Mail Server IPs
- 141.87.208.106 ↩ mailout.gsz-bl.de
SOA Record
Raw SOA
shades05.rzone.de hostmaster.strato-rz.de 2021112909 86400 7200 604800 300
Primary NS (mname)
shades05.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2021112909
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades05.rzone.de
docks18.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:141.87.208.100 ip4:49.12.112.241/32 ip4:49.12.112.239/32 include:_spf.belwue.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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- Gewerbliche Schule Balingen, Steinachstr. 19, 72336 Balingen
- MS=ms86283506
- SPFv=spf1 ip4:141.87.208.100 ip4:49.12.112.241/32 ip4:49.12.112.239/32 include:_spf.belwue.de -all
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