Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tenbrink-ms.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 13:50:04 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx03.hornetsecurity.com
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
MX Priorities
- mx01.hornetsecurity.com: 10
- mx03.hornetsecurity.com: 30
- mx02.hornetsecurity.com: 20
- mx04.hornetsecurity.com: 40
A / AAAA Records
- 62.113.220.120 (no PTR)
Mail Server IPs
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
SOA Record
Raw SOA
ns1.rz-24.de technik.rz-24.de 2026030403 7200 540 604800 3600
Primary NS (mname)
ns1.rz-24.de
Admin Email (rname)
technik@rz-24.de
Serial
2026030403
Refresh
7200s
Retry
540s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.rz-24.de
ns2.rz-24.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 392 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
3 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
- brevo-code:14ac1114a7ef87a8701cfa5c072a89a2
- MS=ms48509710
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