b4dynamics.com

Valid Email Server
Domain Lookup › b4dynamics.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
b4dynamics.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 16:21:45 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 176.52.243.140 ↩ r4036.agenturserver.it

Mail Server IPs

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

SOA Record

Raw SOA ns1.duesseldorf.rz-betrieb.de hostmaster.duesseldorf.rz-betrieb.de 2024100901 10800 3600 604800 86400
Primary NS (mname)
ns1.duesseldorf.rz-betrieb.de
Admin Email (rname)
hostmaster@duesseldorf.rz-betrieb.de
Serial
2024100901
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 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • MS=ms71079470
  • jg4hT8gBcEES9QIpDZ/PloiOA+j5NLWt9RvcnnwLBNUkOeJT3fOUkNap1bbPczADIaX5+yhpAHQ1wZnzSWJq3g==
  • MS=ms44235421
  • _4o8jhm0g14u352pe0b43hni2dmipg1r
  • SPFv=spf1 include:spf.hornetsecurity.com include:agenturserver.de ~all
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