Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zahnarztpraxis-oppermann.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 19:02:45 UTC · ↺ Refresh
MX Hostnames
- postlaube.de
MX Priorities
- postlaube.de: 0
A / AAAA Records
- 185.163.116.237 ↩ postlaube.de
Mail Server IPs
- 185.163.116.237 ↩ postlaube.de
SOA Record
Raw SOA
ns1.resellerinterface.de domainoffensive.datacm.de 1773878400 10800 3600 604800 3600
Primary NS (mname)
ns1.resellerinterface.de
Admin Email (rname)
domainoffensive@datacm.de
Serial
1773878400
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.resellerinterface.de
ns1.resellerinterface.de
ns2.resellerinterface.de
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:185.163.116.237 ip4:5.9.139.107 ip4:188.68.62.37 ip6:2a03:4000:6:d104::1 ip6:2a03:4000:6:d104::42 a:ns1.schnurrkrampf.de +a:postlaube.de +a:securesmtprelay.t-online.de +a:customer-relay1.web-server.biz -all
📊 DNS lookups: 6/10
✓ 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 a mx ip4:185.163.116.237 ip4:5.9.139.107 ip4:188.68.62.37 ip6:2a03:4000:6:d104::1 ip6:2a03:4000:6:d104::42 a:ns1.schnurrkrampf.de +a:postlaube.de +a:securesmtprelay.t-online.de +a:customer-relay1.web-server.biz -all
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