ka-bautenschutz.de

Valid Email Server
Domain Lookup › ka-bautenschutz.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ka-bautenschutz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 01:15:24 UTC · ↺ Refresh

MX Hostnames

  • smtpin.rzone.de

MX Priorities

  • smtpin.rzone.de: 5

A / AAAA Records

  • 104.21.91.46 (no PTR)
  • 172.67.166.185 (no PTR)
  • 2606:4700:3035::6815:5b2e (no PTR)
  • 2606:4700:3035::ac43:a6b9 (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 albert.ns.cloudflare.com dns.cloudflare.com 2398657858 10000 2400 604800 1800
Primary NS (mname)
albert.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398657858
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

zelda.ns.cloudflare.com
albert.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:smtp.strato.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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
  • google-site-verification=svez-HPhsEkRMYAKQoPZWCPlcbIKEO4-Ovy4FxOW5Ds
  • SPFv=spf1 include:smtp.strato.de -all
  • google-site-verification=MXe9C2wJ7ip0QRL25TLJetUK8HgVx_eeDmxj8kW3LaI
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 ka-bautenschutz.de

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

No credit card required
Get 1,000 Free Credits