stuebiger-tec.de

Valid Email Server
Domain Lookup › stuebiger-tec.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
stuebiger-tec.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-04 13:47:05 UTC · ↺ Refresh

MX Hostnames

  • stuebigertec-de02c.mail.protection.outlook.com

MX Priorities

  • stuebigertec-de02c.mail.protection.outlook.com: 10

A / AAAA Records

  • 217.160.0.170 ↩ 217-160-0-170.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com

SOA Record

Raw SOA docks16.rzone.de hostmaster.strato-rz.de 2026011636 86400 7200 604800 300
Primary NS (mname)
docks16.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2026011636
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

docks16.rzone.de
shades04.rzone.de

SPF Record

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

DMARC Record

✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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