Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zurbrueggen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 13:44:32 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx03.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
MX Priorities
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
- mx01.hornetsecurity.com: 10
- mx04.hornetsecurity.com: 40
A / AAAA Records
- 178.63.30.55 ↩ lb.zurbrueggen.de
Mail Server IPs
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
SOA Record
Raw SOA
pns.dtag.de dns.telekom.de 2026031200 10800 3600 2419200 3600
Primary NS (mname)
pns.dtag.de
Admin Email (rname)
dns@telekom.de
Serial
2026031200
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns1.telekom.net
pns.dtag.de
SPF Record
✓ Strict (-all)
v=spf1 a a:lb.zurbrueggen.de ip4:178.63.30.55 ip4:95.216.226.85 ip4:95.216.226.86 ip4:95.216.226.87 ip4:62.157.125.100 include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.hornetsecurity.com include:spf.EU.exclaimer.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; ruf=mailto:[email protected]; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- R8TohSxS39xhadj7xSvuLSIVpUd21xaxAoBOObmzRBCMw4lkleCKZmjsDshHv5TG+EnEP3i9Fh2VcUw3mRVmlg==
- SPFv=spf1 a a:lb.zurbrueggen.de ip4:178.63.30.55 ip4:95.216.226.85 ip4:95.216.226.86 ip4:95.216.226.87 ip4:62.157.125.100 include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.hornetsecurity.com include:spf.EU.exclaimer.net -all
- MS=ms48027952
- apple-domain-verification=IhWghyTQLgwyykdQ
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