Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gymnasium-harsefeld.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 15:47:03 UTC · ↺ Refresh
MX Hostnames
- mxgw.lk-stade.de
MX Priorities
- mxgw.lk-stade.de: 0
A / AAAA Records
- 46.30.215.162 ↩ webcluster2.webpod17-cph3.one.com
- 2a02:2350:5:106:8015:69a6:27d6:ab56 (no PTR)
Mail Server IPs
- 80.228.66.86 ↩ mxgw.lk-stade.de
SOA Record
Raw SOA
ns01.one.com hostmaster.one.com 2026022405 14400 3600 1209600 600
Primary NS (mname)
ns01.one.com
Admin Email (rname)
hostmaster@one.com
Serial
2026022405
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns01.one.com
ns02.one.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:80.228.66.86 ip4:80.228.66.82 include:_custspf.one.com -all
📊 DNS lookups: 3/10
✓ 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
2 records- SPFv=spf1 a mx ip4:80.228.66.86 ip4:80.228.66.82 include:_custspf.one.com -all
- MS=ms41789714
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