Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
siedlerkoeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 18:27:49 UTC · ↺ Refresh
MX Hostnames
- mail.siedlerkoeln.de
MX Priorities
- mail.siedlerkoeln.de: 0
A / AAAA Records
- 85.13.161.238 ↩ dd12220.kasserver.com
Mail Server IPs
- 87.79.78.70 ↩ static-87-79-78-70.netcologne.de
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2510191050 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2510191050
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
ns5.kasserver.com
ns6.kasserver.com
SPF Record
✓ Strict (-all)
v=spf1 mx a include:_spf.siedlerkoeln.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; pct=100; aspf=r; adkim=r; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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 include:_spf.siedlerkoeln.de -all
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