kht-online.de

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-25 19:36:19 UTC · ↺ Refresh

MX Hostnames

  • mx1.hc104-47.eu.iphmx.com
  • mx2.hc104-47.eu.iphmx.com

MX Priorities

  • mx1.hc104-47.eu.iphmx.com: 10
  • mx2.hc104-47.eu.iphmx.com: 20

A / AAAA Records

  • 89.207.121.197 (no PTR)
  • 2001:a00::12 (no PTR)

Mail Server IPs

  • 207.54.65.153 ↩ esa2.hc104-47.eu.iphmx.com
  • 207.54.67.238 ↩ esa1.hc104-47.eu.iphmx.com

SOA Record

Raw SOA ns1.knapp.com hostmaster.knapp.com 2023071901 10800 3600 604800 3600
Primary NS (mname)
ns1.knapp.com
Admin Email (rname)
hostmaster@knapp.com
Serial
2023071901
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns2.rrpproxy.net
ns3.rrpproxy.net
ns1.rrpproxy.net

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

No TXT records found.

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