rb-makler.de

Valid Email Server
Domain Lookup › rb-makler.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rb-makler.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 22:32:40 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 142.132.229.58 ↩ manage2.razertech.de

Mail Server IPs

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

SOA Record

Raw SOA emily.ns.cloudflare.com dns.cloudflare.com 2400178403 10000 2400 604800 1800
Primary NS (mname)
emily.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400178403
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

emily.ns.cloudflare.com
leland.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.hornetsecurity.com include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com include:onoffice.de include:onoffice.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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=ms80514710
  • SPFv=spf1 include:spf.hornetsecurity.com include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com include:onoffice.de include:onoffice.com ~all
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