Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stolberg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 19:03:50 UTC · ↺ Refresh
MX Hostnames
- mail12.regioit-aachen.de
- mail10.regioit-aachen.de
- mail11.regioit-aachen.de
MX Priorities
- mail12.regioit-aachen.de: 10
- mail10.regioit-aachen.de: 10
- mail11.regioit-aachen.de: 10
A / AAAA Records
- 185.155.109.140 (no PTR)
- 2001:67c:680:f06::140 (no PTR)
Mail Server IPs
- 91.102.136.186 ↩ mail12.regioit-aachen.de
- 2a02:16f0::1:5 ↩ mail12.regioit-aachen.de
- 91.102.136.170 ↩ mail10.regioit-aachen.de
- 2a02:16f0::1:3 ↩ mail10.regioit-aachen.de
- 91.102.136.172 ↩ mail11.regioit-aachen.de
- 2a02:16f0::1:4 ↩ mail11.regioit-aachen.de
SOA Record
Raw SOA
dns1.kdvz-frechen.de skn.kdvz.nrw 2026032501 10800 3600 604800 3600
Primary NS (mname)
dns1.kdvz-frechen.de
Admin Email (rname)
skn@kdvz.nrw
Serial
2026032501
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns1.kdvz-frechen.de
dns2.kdvz-frechen.de
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ 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
5 records- SPFv=spf1 mx -all
- ZOOM_verify_c7fIdgj9Fw0VyF7j8wgdTD
- apple-domain-verification=NLEYA0Ul6n1Wefmz
- _c78wie1rbtihmq7tq4zco1j6447m5bm
- 5wh20skgj4v8mp3mgd7x48bw0g3f9qcw
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