horn-company.de

Valid Email Server
Domain Lookup › horn-company.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
horn-company.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 23:54:16 UTC · ↺ Refresh

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MX Hostnames

  • mx00.horn-company.de
  • mx01.horn-company.de

MX Priorities

  • mx01.horn-company.de: 20
  • mx00.horn-company.de: 10

A / AAAA Records

  • 172.67.156.18 (no PTR)
  • 104.21.48.195 (no PTR)
  • 2606:4700:3035::6815:30c3 (no PTR)
  • 2606:4700:3031::ac43:9c12 (no PTR)

Mail Server IPs

  • 37.24.55.133 ↩ smtp.horn-company.de
  • 57.133.91.25 ↩ smtp.horn-company.de

SOA Record

Raw SOA autumn.ns.cloudflare.com dns.cloudflare.com 2400104389 10000 2400 604800 1800
Primary NS (mname)
autumn.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400104389
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

denver.ns.cloudflare.com
autumn.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:57.133.91.25/32 ip4:37.24.55.133/32 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject

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

5 records
  • v8r4dpdx09yygk5r8206kv3t2r9cr17w
  • SPFv=spf1 ip4:57.133.91.25/32 ip4:37.24.55.133/32 include:spf.protection.outlook.com -all
  • MS=4EA6E670D9730603A192E9CC26146AAA07B5BCD0
  • __autodiscover.__tcp.horn-company.de.de 3600 IN SRV 0 5 443 mail.horn-company.de
  • apple-domain-verification=Wn8AzMvC2NwfrujL
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