Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
steffen-winkler.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 01:56:07 UTC · ↺ Refresh
MX Hostnames
- xmail.cluster-team.com
MX Priorities
- xmail.cluster-team.com: 10
A / AAAA Records
- 185.157.21.91 ↩ web-04.vm.cluster-team.com
Mail Server IPs
- 185.157.21.124 ↩ xmail.cluster-team.com
SOA Record
Raw SOA
ns0.cluster-team.net domreg.cluster-team.com 2024061100 21600 1800 2419200 172800
Primary NS (mname)
ns0.cluster-team.net
Admin Email (rname)
domreg@cluster-team.com
Serial
2024061100
Refresh
21600s
Retry
1800s
Expire
2419200s
Minimum TTL
172800s
Nameservers (NS)
ns2.cluster-team.net
ns0.cluster-team.net
ns3.cluster-team.net
ns1.cluster-team.net
SPF Record
✓ Strict (-all)
v=spf1 mx a ptr include:spf.cluster-team.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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
1 record- SPFv=spf1 mx a ptr include:spf.cluster-team.net -all
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