stuber-gmbh.de

Valid Email Server
Domain Lookup › stuber-gmbh.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
stuber-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 15:27:42 UTC · ↺ Refresh

MX Hostnames

  • stubergmbh-de01e.mail.protection.outlook.com

MX Priorities

  • stubergmbh-de01e.mail.protection.outlook.com: 10

A / AAAA Records

  • 185.221.104.233 ↩ r20795.agenturserver.it

Mail Server IPs

  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.first-ns.de dns.hetzner.com 2025052000 14400 1800 604800 60
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2025052000
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
60s

Nameservers (NS)

robotns2.second-ns.de
robotns3.second-ns.com
ns1.first-ns.de

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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

2 records
  • sophos-domain-verification=2225991c4dafa96e7d0f2e0602ce1c953722bb480f94c7666a5fd5a54b2d0a04
  • SPFv=spf1 include:spf.protection.outlook.com -all
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