immobilienhaus-koenigstein.de

Valid Email Server
Domain Lookup › immobilienhaus-koenigstein.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
immobilienhaus-koenigstein.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 03:12:54 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

  • smtpin.rzone.de

MX Priorities

  • smtpin.rzone.de: 5

A / AAAA Records

  • 104.20.27.124 (no PTR)
  • 172.66.144.158 (no PTR)
  • 2606:4700:10::6814:1b7c (no PTR)
  • 2606:4700:10::ac42:909e (no PTR)

Mail Server IPs

  • 81.169.145.97 ↩ smtpin.rzone.de
  • 2a01:238:20a:202:50f0::1097 ↩ smtpin.rzone.de

SOA Record

Raw SOA primary.ns.meinimmoportal.eu dns.cloudflare.com 2398819725 10000 2400 604800 1800
Primary NS (mname)
primary.ns.meinimmoportal.eu
Admin Email (rname)
dns@cloudflare.com
Serial
2398819725
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

secondary.ns.meinimmoportal.eu
primary.ns.meinimmoportal.eu

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.strato.com include:_spf.onoffice.de include:spf.protection.outlook.de ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
⚠ 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

3 records
  • SPFv=spf1 include:_spf.strato.com include:_spf.onoffice.de include:spf.protection.outlook.de ~all
  • google-site-verification=O5ko5Z8be2-hGaOCftCCEGGGabaVsAh485BYN-AWHuc
  • google-site-verification=R--JR2NCyEjxpYC_tPfiRqXiRzUvs2ANZT_M7hpv-1k
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 immobilienhaus-koenigstein.de

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

No credit card required
Get 1,000 Free Credits