Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
praxismuehlenbeck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 18:48:55 UTC · ↺ Refresh
MX Hostnames
- mail.tan3.de
MX Priorities
- mail.tan3.de: 10
A / AAAA Records
- 135.181.126.217 ↩ www1.tan3.de
- 2a01:4f9:3080:32e9::17 ↩ www1.tan3.de
Mail Server IPs
- 136.243.242.10 ↩ mail.tan3.de
- 2a01:4f8:241:51e::10 ↩ mail.tan3.de
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2025112800 14400 1800 604800 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2025112800
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.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
1 record- SPFv=spf1 mx -all
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