firmengruppe-brueck.de

Valid Email Server
Domain Lookup › firmengruppe-brueck.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
firmengruppe-brueck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 01:52:28 UTC · ↺ Refresh

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MX Hostnames

  • mx04.hornetsecurity.com
  • mx03.hornetsecurity.com
  • mx01.hornetsecurity.com
  • mx02.hornetsecurity.com

MX Priorities

  • mx02.hornetsecurity.com: 20
  • mx01.hornetsecurity.com: 10
  • mx04.hornetsecurity.com: 40
  • mx03.hornetsecurity.com: 30

A / AAAA Records

  • 77.75.251.119 ↩ cloud5-vm367.de-nserver.de

Mail Server IPs

  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 94.100.132.8 ↩ mx01.hornetsecurity.com
  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.134.8 ↩ mx03.hornetsecurity.com

SOA Record

Raw SOA ns1.de-nserver.de hostmaster.ns1.de-nserver.de 2026022714 14400 3600 604800 600
Primary NS (mname)
ns1.de-nserver.de
Admin Email (rname)
hostmaster@ns1.de-nserver.de
Serial
2026022714
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1.de-nserver.de
ns2.de-nserver.de

SPF Record

✓ Strict (-all)
v=spf1 mx a ip4:37.24.51.50 ip4:217.7.139.242 ip4:217.91.8.228 include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;ruf=mailto:[email protected];sp=quarantine;adkim=s;aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine

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
  • MS=5F3B1AFC163F3C464396FB921FFDBC423FDE5815
  • MS=ms65282853
  • SPFv=spf1 mx a ip4:37.24.51.50 ip4:217.7.139.242 ip4:217.91.8.228 include:spf-de.emailsignatures365.com include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
  • google-site-verification=iMfESYUCDE0m2cbNpwCzZVvpKhChIqYhqP9bByhAgZs
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