Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zelenka.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 02:35:34 UTC · ↺ Refresh
MX Hostnames
- mx03.hornetsecurity.com
- mx02.hornetsecurity.com
- mx04.hornetsecurity.com
- mx01.hornetsecurity.com
MX Priorities
- mx01.hornetsecurity.com: 10
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
- mx04.hornetsecurity.com: 40
A / AAAA Records
- 172.67.146.115 (no PTR)
- 104.21.79.153 (no PTR)
- 2606:4700:3030::ac43:9273 (no PTR)
- 2606:4700:3033::6815:4f99 (no PTR)
Mail Server IPs
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
SOA Record
Raw SOA
chance.ns.cloudflare.com dns.cloudflare.com 2399307949 10000 2400 604800 1800
Primary NS (mname)
chance.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399307949
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
mary.ns.cloudflare.com
chance.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:82.198.88.188 ip4:80.147.182.144 ip4:46.232.185.192/28 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; fo=0:1:d:s; pct=100; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
3 records- google-site-verification=IJ7qMgqTYQPHIEOVR_0Ob3ognL9SQ8a_3hKWys7O2QE
- SPFv=spf1 ip4:82.198.88.188 ip4:80.147.182.144 ip4:46.232.185.192/28 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
- MS=ms64619392
Full email verification for zelenka.de
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