Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
horna.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 14:35:23 UTC · ↺ Refresh
MX Hostnames
- mx01.hornetsecurity.com
- mx02.hornetsecurity.com
MX Priorities
- mx02.hornetsecurity.com: 20
- mx01.hornetsecurity.com: 10
A / AAAA Records
- 81.169.145.71 ↩ w07.rzone.de
- 2a01:238:20a:202:1071:: ↩ w07.rzone.de
Mail Server IPs
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
SOA Record
Raw SOA
docks03.rzone.de hostmaster.strato-rz.de 2020050852 86400 7200 604800 300
Primary NS (mname)
docks03.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050852
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades05.rzone.de
docks03.rzone.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
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
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