Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
33n.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 08:17:04 UTC · ↺ Refresh
MX Hostnames
- mail.33n.de
MX Priorities
- mail.33n.de: 0
A / AAAA Records
- 176.28.14.113 ↩ 33n.de
- 2a01:488:66:1000:b01c:e71::1 ↩ 33n.de
Mail Server IPs
- 176.28.14.113 ↩ 33n.de
- 2a01:488:66:1000:b01c:e71::1 ↩ 33n.de
SOA Record
Raw SOA
ns1.hosting.de hostmaster.33n.de 2025041901 86400 7200 3600000 900
Primary NS (mname)
ns1.hosting.de
Admin Email (rname)
hostmaster@33n.de
Serial
2025041901
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
900s
Nameservers (NS)
ns3.hosting.de
ns2.hosting.de
ns1.hosting.de
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ 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 +a +mx ~all
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