johnsonholding.de

Valid Email Server
Domain Lookup › johnsonholding.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
johnsonholding.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 00:07:44 UTC · ↺ Refresh

MX Hostnames

  • johnsonholding-de.mail.protection.outlook.com
  • mx-01-eu-central-1.prod.hydra.sophos.com
  • mx-02-eu-central-1.prod.hydra.sophos.com

MX Priorities

  • johnsonholding-de.mail.protection.outlook.com: 10
  • mx-02-eu-central-1.prod.hydra.sophos.com: 10
  • mx-01-eu-central-1.prod.hydra.sophos.com: 10

A / AAAA Records

  • 217.160.0.19
  • 2001:8d8:100f:f000::2e4

Mail Server IPs

  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.57.183.85 ↩ ec2-52-57-183-85.eu-central-1.compute.amazonaws.com
  • 18.159.80.41 ↩ ec2-18-159-80-41.eu-central-1.compute.amazonaws.com

SOA Record

Raw SOA ns1030.ui-dns.org hostmaster.kundenserver.de 2016071537 28800 7200 604800 300
Primary NS (mname)
ns1030.ui-dns.org
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2016071537
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1030.ui-dns.biz
ns1030.ui-dns.com
ns1030.ui-dns.org
ns1030.ui-dns.de

SPF Record

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

DMARC Record

✗ p=none
v=DMARC1;p=none
⚠ p=none — monitoring only, no enforcement
📋 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

4 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • sophos-domain-verification=cdfcc0879af4aed3b06fbcf88e58d5c84fc5a97b
  • sophos-domain-verification=2bc1ab5ae339c2fc8efbf45059f5e60ffa2db342b81f09cf6ebaff6946185791
  • v=verifydomain MS=8851251
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