Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cobau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 06:50:13 UTC · ↺ Refresh
MX Hostnames
- mxlb.ispgateway.de
MX Priorities
- mxlb.ispgateway.de: 100
A / AAAA Records
- 92.205.195.80 ↩ sh22902.ispgateway.de
- 2a00:116a:10f:ed70:: ↩ sh22902.ispgateway.de
Mail Server IPs
- 80.67.18.126 ↩ mxlb.ispgateway.de
SOA Record
Raw SOA
ns39.domaincontrol.com hostmaster.cobau.de 1759079606 16384 2048 1048576 2560
Primary NS (mname)
ns39.domaincontrol.com
Admin Email (rname)
hostmaster@cobau.de
Serial
1759079606
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns39.domaincontrol.com
ns40.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 mx a include:spf.nl2go.com include:ispgateway.de -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
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.nl2go.com include:ispgateway.de -all
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