Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cdu-dormagen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 16:12:26 UTC · ↺ Refresh
MX Hostnames
- mail.cdu-dormagen.de
MX Priorities
- mail.cdu-dormagen.de: 5
A / AAAA Records
- 193.219.105.24 (no PTR)
Mail Server IPs
- 193.219.105.46 ↩ mail1.ubgnet.de
SOA Record
Raw SOA
ns1.cdu.de root.ns1.cdu.de 2025070101 10000 1800 604800 3600
Primary NS (mname)
ns1.cdu.de
Admin Email (rname)
root@ns1.cdu.de
Serial
2025070101
Refresh
10000s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.cdu.de
pns.dtag.de
secondary006.dtag.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:193.219.105.0/24 include:inxserver.com -all
📊 DNS lookups: 1/10
✓ 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
✗ 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 ip4:193.219.105.0/24 include:inxserver.com -all
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