kothe-heiztechnik.de

Valid Email Server
Domain Lookup › kothe-heiztechnik.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
kothe-heiztechnik.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 14:06:20 UTC · ↺ Refresh

MX Hostnames

  • kotheheiztechnik-de01c.mail.protection.outlook.com

MX Priorities

  • kotheheiztechnik-de01c.mail.protection.outlook.com: 0

A / AAAA Records

  • 158.181.48.203 ↩ server1.hostlo.de

Mail Server IPs

  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.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
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns.internet1.de hostmaster.centron.de 2025072102 3600 900 1209600 1800
Primary NS (mname)
ns.internet1.de
Admin Email (rname)
hostmaster@centron.de
Serial
2025072102
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
1800s

Nameservers (NS)

ns3.internet1.de
ns2.internet1.de
ns.internet1.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; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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=ms86192550
  • SPFv=spf1 include:spf.protection.outlook.com -all
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