leitner-sicherheitstechnik.de

Valid Email Server
Domain Lookup › leitner-sicherheitstechnik.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
leitner-sicherheitstechnik.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 05:59:26 UTC · ↺ Refresh

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MX Hostnames

  • leitnersicherheitstechnik-de01i.mail.protection.outlook.com

MX Priorities

  • leitnersicherheitstechnik-de01i.mail.protection.outlook.com: 1

A / AAAA Records

  • 217.160.0.22 ↩ 217-160-0-22.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2e7 ↩ 2001-08d8-100f-f000-0000-0000-0000-02e7.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns1106.ui-dns.biz hostmaster.1and1.com 2017050501 28800 7200 604800 300
Primary NS (mname)
ns1106.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2017050501
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1056.ui-dns.de
ns1106.ui-dns.biz
ns1060.ui-dns.com
ns1088.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

2 records
  • MS=ms92657340
  • SPFv=spf1 include:spf.protection.outlook.com -all
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