Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
sf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-04 15:22:16 UTC · ↺ Refresh
MX Hostnames
- k26v99.meinserver.io
MX Priorities
- k26v99.meinserver.io: 10
A / AAAA Records
- 138.201.228.104 ↩ k26v99.meinserver.io
Mail Server IPs
- 138.201.228.104 ↩ k26v99.meinserver.io
SOA Record
Raw SOA
ns2.knipp.de dnsmaster.irondns.net 2 10800 3000 2419200 900
Primary NS (mname)
ns2.knipp.de
Admin Email (rname)
dnsmaster@irondns.net
Serial
2
Refresh
10800s
Retry
3000s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns2.knipp.de
ns17.knipp.net
ns3.knipp.de
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
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
No TXT records found.
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