stadtwerke-bonn.de

Valid Email Server
Domain Lookup › stadtwerke-bonn.de

Domain Overview

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

Checked via [email protected] · 2026-03-31 18:23:16 UTC · ↺ Refresh

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MX Hostnames

  • mail2.stadtwerke-bonn.de
  • mail4.stadtwerke-bonn.de

MX Priorities

  • mail4.stadtwerke-bonn.de: 10
  • mail2.stadtwerke-bonn.de: 10

A / AAAA Records

  • 82.98.127.16 (no PTR)

Mail Server IPs

  • 91.220.185.16 ↩ mail4.stadtwerke-bonn.de
  • 91.220.185.17 ↩ mail2.stadtwerke-bonn.de

SOA Record

Raw SOA dns11.netcologne.de hostmaster.netcologne.de 2026032002 28800 7200 604800 3600
Primary NS (mname)
dns11.netcologne.de
Admin Email (rname)
hostmaster@netcologne.de
Serial
2026032002
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns14.netcologne.de
dns11.netcologne.de
dns13.netcologne.de
dns12.netcologne.de

SPF Record

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

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; pct=100; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 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

6 records
  • google-site-verification=msruAeJArE_p_LYMQ8LFIx5vsUvhJlxyzxTNuBJpwIE
  • MS=ms17084812
  • 50581b90d2220d04f21a642aa709ddd7
  • SPFv=spf1 mx include:spf.protection.outlook.com -all
  • apple-domain-verification=fGSsYn9bUzXhDjAp
  • QuoVadis=ca5262d2-45dd-4886-8d85-7f7fa35f571a
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