Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
clausthal-zellerfeld.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 22:50:07 UTC · ↺ Refresh
MX Hostnames
- mta2in.kdo.de
- mta1in.kdo.de
MX Priorities
- mta2in.kdo.de: 10
- mta1in.kdo.de: 10
A / AAAA Records
- 89.110.176.54 (no PTR)
Mail Server IPs
- 194.76.65.145 ↩ mta2in.kdo.de
- 194.76.65.144 ↩ mta1in.kdo.de
SOA Record
Raw SOA
pns.dtag.de dns.telekom.de 2025112500 10800 3600 2419200 3600
Primary NS (mname)
pns.dtag.de
Admin Email (rname)
dns@telekom.de
Serial
2025112500
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
ns1.telekom.net
pns.dtag.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:_spf.kdo.de include:spf.itebo.de -all
📊 DNS lookups: 3/10
✓ 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
2 records- SPFv=spf1 mx include:_spf.kdo.de include:spf.itebo.de -all
- google-site-verification=EDpQaSZ1MxhgqHR7gMZ4-DfMpcBIzri-qy3awaV1hYg
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