Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sprenger-koehler.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 02:10:12 UTC · ↺ Refresh
MX Hostnames
- mailng.sprenger-koehler.de
MX Priorities
- mailng.sprenger-koehler.de: 10
A / AAAA Records
- 81.209.248.219 ↩ w16.pixelx.cloud
- 2001:7f0:3000:512::548:219 ↩ w16.pixelx.cloud
Mail Server IPs
- 46.20.34.55 ↩ mailng.sprenger-koehler.de
SOA Record
Raw SOA
ns8.pixelx.de torsten\.sprenger.sprenger-koehler.de 2026022504 10800 3600 604800 10800
Primary NS (mname)
ns8.pixelx.de
Admin Email (rname)
torsten\@sprenger.sprenger-koehler.de
Serial
2026022504
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns7.pixelx.de
ns6.pixelx.de
ns8.pixelx.de
SPF Record
✓ Strict (-all)
v=spf1 +mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +mx -all
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