zumschluessel.de

Valid Email Server
Domain Lookup › zumschluessel.de

Domain Overview

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

Checked via [email protected] · 2026-03-27 08:36:43 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 176.52.243.140 ↩ r4036.agenturserver.it

Mail Server IPs

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

SOA Record

Raw SOA ns1.duesseldorf.rz-betrieb.de hostmaster.duesseldorf.rz-betrieb.de 2026010701 10800 3600 604800 86400
Primary NS (mname)
ns1.duesseldorf.rz-betrieb.de
Admin Email (rname)
hostmaster@duesseldorf.rz-betrieb.de
Serial
2026010701
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

pns.dtag.de
secondary006.dtag.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.hornetsecurity.com include:agenturserver.de include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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

3 records
  • _qgw4yzp5jyuvyz4f5c3gzag4ntsw6g0
  • SPFv=spf1 include:spf.hornetsecurity.com include:agenturserver.de include:spf.protection.outlook.com ~all
  • google-site-verification=jxGOLdaR8siNRZZngolqWShqVKAbFT4e41rObceNZ-U
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