s-t-m-gmbh.de

Valid Email Server
Domain Lookup › s-t-m-gmbh.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
s-t-m-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 16:46:58 UTC · ↺ Refresh

MX Hostnames

  • stmgmbh-de0kc.mail.protection.outlook.com

MX Priorities

  • stmgmbh-de0kc.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.192 ↩ 217-160-0-192.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2cb ↩ 2001-08d8-100f-f000-0000-0000-0000-02cb.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com

SOA Record

Raw SOA ns1040.ui-dns.org hostmaster.1und1.com 2017060115 28800 7200 604800 600
Primary NS (mname)
ns1040.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060115
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1047.ui-dns.biz
ns1045.ui-dns.com
ns1091.ui-dns.de
ns1040.ui-dns.org

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

3 records
  • google-site-verification=oQbxwj5V8iFR_bA2p72UEaW7x7ij4-RTaIVdiriq6a8
  • MS=ms37818273
  • SPFv=spf1 include:spf.protection.outlook.com -all
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