kbx7.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
kbx7.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 19:41:39 UTC · ↺ Refresh

MX Hostnames

  • struppi.kbx.de
  • tiffy.kbx.de
  • tim.kbx.de

MX Priorities

  • tim.kbx.de: 150
  • struppi.kbx.de: 200
  • tiffy.kbx.de: 10

A / AAAA Records

  • 83.223.86.49 ↩ proxy.kbx.de

Mail Server IPs

  • 212.21.77.38 ↩ tim.kbx.de
  • 83.223.83.136 ↩ struppi.kbx.de
  • 83.223.90.192 ↩ tiffy.kbx.de
  • 2a01:30::505:ac53:a7ff:fe38:cab3 ↩ tiffy.kbx.de
  • 2a01:30::13:ac53:a7ff:fe38:cab3 ↩ tiffy.kbx.de

SOA Record

Raw SOA dns1.isp-eg.de w_sch.mind.de 2023010302 10800 3600 1209600 86400
Primary NS (mname)
dns1.isp-eg.de
Admin Email (rname)
w_sch@mind.de
Serial
2023010302
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

dns2.sinma.de
dns1.isp-eg.de

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.sinma.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=8640000
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 include:_spf.sinma.de -all
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