Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ruhr-petrol.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 10:41:31 UTC · ↺ Refresh
MX Hostnames
- mx03.hornetsecurity.com
- mx02.hornetsecurity.com
- mx01.hornetsecurity.com
- mx04.hornetsecurity.com
MX Priorities
- mx01.hornetsecurity.com: 10
- mx04.hornetsecurity.com: 40
- mx02.hornetsecurity.com: 20
- mx03.hornetsecurity.com: 30
A / AAAA Records
- 194.6.195.77 ↩ juj-cluster01.corpex-k8s.de
Mail Server IPs
- 94.100.132.8 ↩ mx01.hornetsecurity.com
- 94.100.136.7 ↩ mx04.hornetsecurity.com
- 94.100.136.8 ↩ mx02.hornetsecurity.com
- 94.100.134.8 ↩ mx03.hornetsecurity.com
SOA Record
Raw SOA
dns-auth-1.corpex-dns.de dnsmaster.corpex-dns.de 2025073101 28800 7200 3600000 3600
Primary NS (mname)
dns-auth-1.corpex-dns.de
Admin Email (rname)
dnsmaster@corpex-dns.de
Serial
2025073101
Refresh
28800s
Retry
7200s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
dns-auth-2.corpex-dns.net
dns-auth-1.corpex-dns.de
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=ruhr-petrol.de.spf.hornetdmarc.com
📊 DNS lookups: 1/10
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms39424586
- SPFv=spf1 redirect=ruhr-petrol.de.spf.hornetdmarc.com
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