Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jp-design.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 15:00:09 UTC · ↺ Refresh
MX Hostnames
- mx02.rzfr.de
- mx01.rzfr.de
- 28-51.rzfr.de
MX Priorities
- mx01.rzfr.de: 10
- 28-51.rzfr.de: 90
- mx02.rzfr.de: 20
A / AAAA Records
- 213.214.28.51 ↩ mail51.rzfr.de
Mail Server IPs
- 213.214.30.3 ↩ mx01.rzfr.de
- 213.214.28.51 ↩ mail51.rzfr.de
- 213.214.27.25 ↩ mx02.rzfr.de
SOA Record
Raw SOA
28-51.jp-design.de hostmaster.jp-design.de 2022120600 10800 3600 1209600 3600
Primary NS (mname)
28-51.jp-design.de
Admin Email (rname)
hostmaster@jp-design.de
Serial
2022120600
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns2.net-base.de
dns1.net-base.de
dns1.linux-profi.com
SPF Record
✓ Strict (-all)
v=spf1 a mx -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
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
1 record- SPFv=spf1 a mx -all
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