Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cafrost.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 11:36:24 UTC · ↺ Refresh
MX Hostnames
- smtpin.rzone.de
MX Priorities
- smtpin.rzone.de: 5
A / AAAA Records
- 81.169.145.155 ↩ w9b.rzone.de
- 2a01:238:20a:202:1155:: ↩ w9b.rzone.de
Mail Server IPs
- 81.169.145.97 ↩ smtpin.rzone.de
- 2a01:238:20a:202:50f0::1097 ↩ smtpin.rzone.de
SOA Record
Raw SOA
shades17.rzone.de hostmaster.strato-rz.de 2024111940 86400 7200 604800 300
Primary NS (mname)
shades17.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2024111940
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades17.rzone.de
docks02.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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 -all
- MS=ms97997636
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