Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ubuntusystems.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 02:27:39 UTC · ↺ Refresh
MX Hostnames
- mail.ubuntusystems.de
MX Priorities
- mail.ubuntusystems.de: 10
A / AAAA Records
- 194.24.160.39 (no PTR)
Mail Server IPs
- 212.18.209.230 ↩ mail.my-qh.de
SOA Record
Raw SOA
a.ns14.net martin.phase-i.de 2023112100 43200 14400 604800 500
Primary NS (mname)
a.ns14.net
Admin Email (rname)
martin@phase-i.de
Serial
2023112100
Refresh
43200s
Retry
14400s
Expire
604800s
Minimum TTL
500s
Nameservers (NS)
c.ns14.net
a.ns14.net
b.ns14.net
d.ns14.net
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
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
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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