lorenzen-online.de

Valid Email Server
Domain Lookup › lorenzen-online.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
lorenzen-online.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-14 19:39:36 UTC · ↺ Refresh

MX Hostnames

  • sms03.k1net.de
  • sms04.k1net.de
  • lorenzenonline-de02b.mail.protection.outlook.com

MX Priorities

  • sms03.k1net.de: 30
  • sms04.k1net.de: 40
  • lorenzenonline-de02b.mail.protection.outlook.com: 0

A / AAAA Records

  • 81.246.126.223

Mail Server IPs

  • 213.131.233.80 ↩ sms03.k1net.de
  • 185.171.218.24 ↩ sms04.k1net.de
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns.k1net.de hostmaster.k1net.de 2024123001 3600 900 1209600 3600
Primary NS (mname)
ns.k1net.de
Admin Email (rname)
hostmaster@k1net.de
Serial
2024123001
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns.k1net.org
ns.k1net.eu
ns.k1net.info
ns.k1net.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.k1net.de -all
📊 DNS lookups: 2/10
✓ 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
  • MS=ms84228955
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.k1net.de -all
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 lorenzen-online.de

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

No credit card required
Get 1,000 Free Credits