brennenstuhl.de

Valid Email Server
Domain Lookup › brennenstuhl.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
brennenstuhl.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 08:36:01 UTC · ↺ Refresh

MX Hostnames

  • brennenstuhl-de.mail.protection.outlook.com

MX Priorities

  • brennenstuhl-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 78.47.183.99 ↩ brennenstuhl-online.de

Mail Server IPs

  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com

SOA Record

Raw SOA ns1072.ui-dns.biz hostmaster.kundenserver.de 2015012988 28800 7200 604800 300
Primary NS (mname)
ns1072.ui-dns.biz
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2015012988
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1072.ui-dns.com
ns1072.ui-dns.de
ns1072.ui-dns.org
ns1072.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 ip4:80.146.173.100 ip4:78.47.87.34 ip4:78.47.183.99 include:spf.protection.outlook.com include:mail.zendesk.com include:_spf.rexx-suite.com include:spf.eu.signature365.net include:spf.nl2go.com -all
📊 DNS lookups: 5/10
✓ 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

8 records
  • atlassian-domain-verification=2ozQGPDWIPBlWbMhwacl4rXtw43RFnzYCp9i9uRc0KmxAa7sfqhLCVSThlxilEP3
  • apple-domain-verification=RCDrY3tnFxtZ42Ve
  • s4h-busi-my421426._domainkey.brennenstuhl.de
  • SPFv=spf1 ip4:80.146.173.100 ip4:78.47.87.34 ip4:78.47.183.99 include:spf.protection.outlook.com include:mail.zendesk.com include:_spf.rexx-suite.com include:spf.eu.signature365.net include:spf.nl2go.com -all
  • atlassian-domain-verification=vNsevXqu/ys3d9I6Pvw2ez3Qs7V7zCpIlZwhOg2bWj3OfVvmesxc3mrNuFQ6gIBP
  • s4h-busi-my421376._domainkey.brennenstuhl.de
  • s4h-busi-my423294._domainkey.brennenstuhl.de
  • atlassian-sending-domain-verification=e1a2bdd8-a58b-42a5-9ea3-11d51b112fd7
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 brennenstuhl.de

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

No credit card required
Get 1,000 Free Credits