karb.de

Valid Email Server
Domain Lookup › karb.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
karb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-28 03:31:34 UTC · ↺ Refresh

MX Hostnames

  • mailer.karb.de

MX Priorities

  • mailer.karb.de: 10

A / AAAA Records

  • 54.38.155.48 (no PTR)

Mail Server IPs

  • 80.147.85.227 ↩ mailer.karb.de

SOA Record

Raw SOA ns1.he.net hostmaster.he.net 2023091700 86400 7200 3600000 172800
Primary NS (mname)
ns1.he.net
Admin Email (rname)
hostmaster@he.net
Serial
2023091700
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
172800s

Nameservers (NS)

ns2.he.net
ns3.he.net
ns1.he.net
ns4.he.net

SPF Record

✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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 -all
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