burggymnasium-altena.de

Valid Email Server
Domain Lookup › burggymnasium-altena.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
burggymnasium-altena.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-06 16:14:41 UTC · ↺ Refresh

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MX Hostnames

  • mx.schulon.org

MX Priorities

  • mx.schulon.org: 10

A / AAAA Records

  • 144.76.163.62 ↩ mse-hosting-s01.de

Mail Server IPs

  • 194.77.246.20 ↩ mx.schulon.org

SOA Record

Raw SOA dns.krzn.de joachim.krzn.de 2025071700 28800 7200 604800 3600
Primary NS (mname)
dns.krzn.de
Admin Email (rname)
joachim@krzn.de
Serial
2025071700
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns.krzn.de
secondary006.dtag.net
pns.dtag.de

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.lgn.ext.schulon.org -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; adkim=r; aspf=r; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • SPFv=spf1 include:_spf.lgn.ext.schulon.org -all
  • cisco-ci-domain-verification=778048683833fa445804c032c600a71ee43a3c64b4171901220271c8490a8ec9
  • apple-domain-verification=whCaVSTyNWaSj7DG
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