kappa-optronics.com

Valid Email Server
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
kappa-optronics.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-04 17:34:41 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • kappaoptronics-com01c.mail.protection.outlook.com

MX Priorities

  • kappaoptronics-com01c.mail.protection.outlook.com: 10

A / AAAA Records

  • 185.166.23.219 ↩ r32001.agenturserver.it

Mail Server IPs

  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.103.143 ↩ mail-miypr03cu00107.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::8 ↩ mail-matpr04cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA pns1.sernet.de hostmaster.domainbestellsystem.de 2026060901 28800 3600 2419200 3600
Primary NS (mname)
pns1.sernet.de
Admin Email (rname)
hostmaster@domainbestellsystem.de
Serial
2026060901
Refresh
28800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

pns2.sernet.net
pns4.sernet.net
pns1.sernet.de
pns3.sernet.de

SPF Record

✓ Strict (-all)
v=spf1 mx a include:spf.protection.outlook.com include:_spf.sendnode.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; adkim=r; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • sophos-domain-verification=f131740570771a0564108cb962b7727388b59ba67d1be9506af050474b3d9097
  • google-site-verification=c9S3Um5It9A60tkgOR1PFECi7cN3b93UG-ZqQYifT-I
  • SPFv=spf1 mx a include:spf.protection.outlook.com include:_spf.sendnode.com -all
  • KAPPA optronics GmbH, Gleichen, Germany
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 · Customize →
See demo & docs
Deep verification
Full email verification for kappa-optronics.com

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

No credit card required
Get 1,000 Free Credits