kubikom.de

Valid Email Server
Domain Lookup › kubikom.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
kubikom.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 16:03:09 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • kubikom-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 217.160.0.183 ↩ 217-160-0-183.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns1119.ui-dns.biz hostmaster.1und1.de 2017041216 28800 7200 604800 300
Primary NS (mname)
ns1119.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2017041216
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1119.ui-dns.org
ns1119.ui-dns.com
ns1119.ui-dns.de
ns1119.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

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

All TXT Records

4 records
  • _globalsign-domain-verification=FBwSuUflzaZxpF9IndF_XcaGjCEY-WqjrpgEK0dzhR
  • MS=ms78173439
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.perfora.net include:_spf.kundenserver.de -all
  • google-site-verification=2BEuWJ8HsZ8JWGJ2v1hy29tOjdwojU1NBJgRXC7JHi8
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for kubikom.de

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits