Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
duckimpact.nl
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 19:45:09 UTC · ↺ Refresh
MX Hostnames
- smtp.rzone.de
MX Priorities
- smtp.rzone.de: 5
A / AAAA Records
- 81.169.145.88 ↩ w88.rzone.de
- 2a01:238:20a:202:1088:: ↩ w88.rzone.de
Mail Server IPs
- 81.169.145.98 ↩ smtp.rzone.de
- 2a01:238:20a:202:50f0::2097 ↩ smtp.rzone.de
SOA Record
Raw SOA
shades01.rzone.de hostmaster.strato-rz.de 2022112250 86400 7200 604800 300
Primary NS (mname)
shades01.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2022112250
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks03.rzone.de
shades01.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf.mlsend.com ?all
📊 DNS lookups: 3/10
? Neutral (?all) — no 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
2 records- google-site-verification=BbpaAOZuGpjVlla8OXVqCpmUkmQydjOCxuCL-sxsumQ
- SPFv=spf1 a mx include:_spf.mlsend.com ?all
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