cuisa.de

Valid Email Server
Domain Lookup › cuisa.de

Domain Overview

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

Checked via [email protected] · 2026-04-01 14:10:44 UTC · ↺ Refresh

MX Hostnames

  • cuisa-de.mail.protection.outlook.com

MX Priorities

  • cuisa-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.5.174.56 (no PTR)

Mail Server IPs

  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com

SOA Record

Raw SOA jkns1.jk-computer.net j.brueck.cuisa.de 2018071002 28800 7200 604800 86400
Primary NS (mname)
jkns1.jk-computer.net
Admin Email (rname)
j@brueck.cuisa.de
Serial
2018071002
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

jkns1.jk-computer.net
secondary006.dtag.net
jkns2.jk-computer.net
pns.dtag.de

SPF Record

✓ Strict (-all)
v=spf1 a mx a:mx01.rexx-systems.de a:v-web3.jk-computer.net include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ 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

2 records
  • SPFv=spf1 a mx a:mx01.rexx-systems.de a:v-web3.jk-computer.net include:spf.protection.outlook.com -all
  • MS=ms67277051
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