Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cremer-assekuranz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 10:22:18 UTC · ↺ Refresh
MX Hostnames
- line1b.virus-defence.de
- line1a.virus-defence.de
MX Priorities
- line1b.virus-defence.de: 20
- line1a.virus-defence.de: 10
A / AAAA Records
- 81.169.145.163 ↩ wa3.rzone.de
- 2a01:238:20a:202:1163:: ↩ wa3.rzone.de
Mail Server IPs
- 87.190.16.131 ↩ line1b.virus-defence.de
- 80.82.218.16 ↩ line1a.virus-defence.de
SOA Record
Raw SOA
docks16.rzone.de hostmaster.strato-rz.de 2022031612 86400 7200 604800 300
Primary NS (mname)
docks16.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2022031612
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks16.rzone.de
shades19.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spfext.espectrum-hosting.de -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.protection.outlook.com include:spfext.espectrum-hosting.de -all
- MS=ms38686752
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