cubus33.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cubus33.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 01:29:20 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 217.160.0.125 ↩ 217-160-0-125.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::21d ↩ 2001-08d8-100f-f000-0000-0000-0000-021d.elastic-ssl.ui-r.com

Mail Server IPs

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

SOA Record

Raw SOA ns.udag.de hostmaster.united-domains.de 2022042514 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2022042514
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns.udag.net
ns.udag.org
ns.udag.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.hornetsecurity.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 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

3 records
  • SPFv=spf1 include:spf.hornetsecurity.com ~all
  • google-site-verification=M9JcQ1-z5Zjmsnjm4WnL2xp5RKB-zMYmAYpHS0Igz-g
  • MS=ms58994782
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