Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zweidesigner.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 17:06:10 UTC · ↺ Refresh
MX Hostnames
- srv01.nubfield.com
MX Priorities
- srv01.nubfield.com: 10
A / AAAA Records
- 62.245.229.44 ↩ srv01.nubfield.com
Mail Server IPs
- 62.245.229.44 ↩ srv01.nubfield.com
SOA Record
Raw SOA
ns01.nubfield.com hostmaster.nubfield.com 2025092401 7200 540 604800 3600
Primary NS (mname)
ns01.nubfield.com
Admin Email (rname)
hostmaster@nubfield.com
Serial
2025092401
Refresh
7200s
Retry
540s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns02.nubfield.com
ns01.nubfield.com
SPF Record
✓ Strict (-all)
v=spf1 mx a -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a -all
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