Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
vanrandenborgh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 19:54:00 UTC · ↺ Refresh
MX Hostnames
- smtp-fallback.corpex-net.de
- smtp-relay.corpex-net.de
- mx01.corpex-net.de
MX Priorities
- smtp-fallback.corpex-net.de: 110
- smtp-relay.corpex-net.de: 100
- mx01.corpex-net.de: 10
A / AAAA Records
- 164.92.177.233 (no PTR)
Mail Server IPs
- 80.252.109.12 (no PTR)
- 194.6.192.35 ↩ mx-backup.corpex-net.de
- 194.6.192.31 ↩ corvusmajor.corpex-net.de
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
✓ Strict (-all)
v=spf1 include:spf.corpex.de mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
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
1 record- SPFv=spf1 include:spf.corpex.de mx -all
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