kuba-jena.de

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
kuba-jena.de
Yes
โœ“ Yes
Unknown
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-29 05:54:07 UTC ยท โ†บ Refresh

MX Hostnames

  • mail.inetmx.net

MX Priorities

  • mail.inetmx.net: 10

A / AAAA Records

  • 51.195.16.97 โ†ฉ cluster42.inetsolutions.de

Mail Server IPs

  • 176.28.25.5 โ†ฉ mail.inetmx.net

SOA Record

Raw SOA ns0.inetsolutions.de technik.inetsolutions.de 2023033100 43200 7200 1209600 86400
Primary NS (mname)
ns0.inetsolutions.de
Admin Email (rname)
technik@inetsolutions.de
Serial
2023033100
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns1.inetsolutions.de
ns0.inetsolutions.de
ns2.inetsolutions.de
ns3.inetsolutions.de

SPF Record

โœ“ Soft Fail (~all)
v=spf1 include:spf.sendinblue.com mx ~all
๐Ÿ“Š DNS lookups: 2/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

โœ— p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]!10m
โ†ณ Subdomain policy: none

DKIM Selectors

โœ“ 1 found
mail._domainkey
โœ“ Public key: 216 chars (valid)
โœ“ DKIM properly configured for selector: mail

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

All TXT Records

3 records
  • google-site-verification=iE822zFAS0eeCAN2SruIpQnR4njsYsqdqSjqU1xWqnE
  • sendinblue-code:468f18236960dd1da4511b6aa5affa31
  • SPFv=spf1 include:spf.sendinblue.com mx ~all
Free ยท No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts โ€” unlimited, forever free.

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

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

No credit card required
Get 1,000 Free Credits