mcup-koeln.de

Valid Email Server
Domain Lookup › mcup-koeln.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mcup-koeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-24 01:28:41 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 5.35.225.66 ↩ wp059.webpack.hosteurope.de
  • 2a01:488:42:1000:50ed:8442:ae:65a0 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns51.domaincontrol.com dns.jomax.net 2026030801 28800 7200 604800 600
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns52.domaincontrol.com
ns51.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:80.237.132.66 include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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
  • SPFv=spf1 ip4:80.237.132.66 include:spf.hornetsecurity.com include:spf.protection.outlook.com -all
  • 6kjukkv7pca8kuhvl7gqdgtq8t
  • google-site-verification=ONTmoO8dBVX7LtPjzMG_bjVq5VAYbnRaxWjoZBpXuJ4
  • MS=ms47490207
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