Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bruecke-flensburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 23:20:18 UTC · ↺ Refresh
MX Hostnames
- mx04.hornetsecurity.com
- mx02.hornetsecurity.com
- mx01.hornetsecurity.com
- mx03.hornetsecurity.com
MX Priorities
- mx02.hornetsecurity.com: 20
- mx01.hornetsecurity.com: 10
- mx04.hornetsecurity.com: 200
- mx03.hornetsecurity.com: 200
A / AAAA Records
- 78.47.72.74 ↩ static.74.72.47.78.clients.your-server.de
- 2a01:4f8:c0c:ec81::1 (no PTR)
Mail Server IPs
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
SOA Record
Raw SOA
shades13.rzone.de hostmaster.strato-rz.de 2020051949 86400 7200 604800 300
Primary NS (mname)
shades13.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051949
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades13.rzone.de
docks10.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:62.91.162.96 ip4:78.47.72.74 ip4:178.13.230.74 include:_spf.strato.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
2 records- MS=ms46144081
- SPFv=spf1 mx ip4:62.91.162.96 ip4:78.47.72.74 ip4:178.13.230.74 include:_spf.strato.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
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