stadtwerke-dueren.de

Valid Email Server
Domain Lookup › stadtwerke-dueren.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
stadtwerke-dueren.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 16:26:28 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

  • mx10.gisa.de
  • mx09.gisa.de

MX Priorities

  • mx09.gisa.de: 10
  • mx10.gisa.de: 10

A / AAAA Records

  • 194.6.210.197 ↩ srv-a-cc.c-1881.maxcluster.net
  • 2a00:f48:1008::210:197:10 ↩ srv-a-cc.c-1881.maxcluster.net

Mail Server IPs

  • 185.158.224.109 ↩ mx09.gisa.de
  • 185.158.224.110 ↩ mx10.gisa.de

SOA Record

Raw SOA ns.europe.adacor.net hostmaster.adacor.net 2026022001 10000 1800 604800 3600
Primary NS (mname)
ns.europe.adacor.net
Admin Email (rname)
hostmaster@adacor.net
Serial
2026022001
Refresh
10000s
Retry
1800s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns5.adacor.net
ns.europe.adacor.net
ns.global.adacor.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:213.61.69.122/32 ip4:212.45.106.160/27 ip4:194.6.210.197/32 ip4:88.99.64.201/32 include:spf.gisa.de include:_spf.stadtwerke-dueren.de include:eur.pb-dynmktge.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

13 records
  • ZA=fTxe737VNuLpxVztb2u2Dh/6INWk8u84d8vrG3bAfRM=
  • amazonses:owfaIjSsZIuNjrNLcIvhRBfY0iSQ0XeCwaz2F9FzRoM=
  • knowbe4-site-verification=03d1c0ae8e1bd4fcb90004455e292658
  • google-site-verification=jgt_oUgIe5-5jlftOn9PMqaySDdapClSss_l1ztta2w
  • google-site-verification=xRaXjZcK7yiDv-F-PGQZSbJPqNqfKQjuYP_Od8cuLtE
  • SmX1CzpreQhbRMrPk7fmugoKbhj+BsydERNRsP0ae1oHVqLsFl0BNZqnkSFfm/6Jwf6nGa4SCTr+h6GBI//peQ==
  • YRYfnmh5Zwb8NnmkmB7ecWG8wnTPVVXpE6v5HgnO1h+QybJzx0EXRXkC5j25b1K1oBYA7sHrvyiDAk/iBO/WAQ==
  • _telesec-domain-validation=280388_2020-05-19_bvOciW34cLrt3MjPJbBhbzHnFI7vyORMqiw5pDd3DZW2EBse4F
  • SPFv=spf1 ip4:213.61.69.122/32 ip4:212.45.106.160/27 ip4:194.6.210.197/32 ip4:88.99.64.201/32 include:spf.gisa.de include:_spf.stadtwerke-dueren.de include:eur.pb-dynmktge.com include:spf.protection.outlook.com -all
  • v=spf2.0/pra
  • MS=ms22229502
  • d365mktkey=752y535itx054zs9qjlwa7dv9
  • zscaler-verification-159484216-03022025-BmWRr
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 stadtwerke-dueren.de

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

No credit card required
Get 1,000 Free Credits