tecklenborg.de

Valid Email Server

Domain Overview

DNS: ✓ 23d ago Checker: ✓ 23d ago
tecklenborg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-05 05:31:35 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

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

MX Priorities

  • tecklenborg-de.mail.protection.outlook.com: 1

A / AAAA Records

  • 217.160.0.57 ↩ 217-160-0-57.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.103.39 ↩ mail-miypr05cu00207.inbound.protection.outlook.com
  • 52.101.181.153 ↩ mail-wa4pr04cu00101.inbound.protection.outlook.com
  • 52.101.185.21 ↩ mail-zrxpr05cu00105.inbound.protection.outlook.com
  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca21::e ↩ mail-matpr04cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::8 ↩ mail-wa4pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::a ↩ mail-am7pr02cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1085.ui-dns.com hostmaster.schlund.de 2016111756 28800 7200 604800 300
Primary NS (mname)
ns1085.ui-dns.com
Admin Email (rname)
hostmaster@schlund.de
Serial
2016111756
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1085.ui-dns.de
ns1085.ui-dns.org
ns1085.ui-dns.com
ns1085.ui-dns.biz

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.prod.hydra.sophos.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=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

2 records
  • MS=ms89645240
  • SPFv=spf1 include:_spf.prod.hydra.sophos.com include:spf.protection.outlook.com -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 · Customize →
See demo & docs
Deep verification
Full email verification for tecklenborg.de

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

No credit card required
Get 1,000 Free Credits