Domain Overview
DNS: ✓ 24h ago
Checker: ✓ 24h ago
ccdur.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-11-10 13:42:30 UTC · ↺ Refresh
MX Hostnames
- mx.boesner.biz
MX Priorities
- mx.boesner.biz: 10
A / AAAA Records
- 212.48.101.12 ↩ web02.boesner.biz
Mail Server IPs
- 212.48.101.9 ↩ mx.boesner.biz
- 2001:4090:e005:7700::9 ↩ mx.boesner.biz
SOA Record
Raw SOA
ns.second.de hostmaster.second.de 2010110910 14400 4800 2419200 86400
Primary NS (mname)
ns.second.de
Admin Email (rname)
hostmaster@second.de
Serial
2010110910
Refresh
14400s
Retry
4800s
Expire
2419200s
Minimum TTL
86400s
Nameservers (NS)
ns.in-p.de
ns.second.de
ns-sec.in-p.de
ns3.in-p.de
ns1.second.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:212.48.101.0/27 a:h1010.inp-service.net a:h1011.inp-service.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; aspf=r; adkim=r; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:212.48.101.0/27 a:h1010.inp-service.net a:h1011.inp-service.net -all
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